指某物或某人可以被取得、使用或接觸的狀態或程度。
可取得性
EN: the state of being able to be obtained or used
翻譯: 指物品、資源或服務可以被取得或使用的狀態。
可用性
EN: the quality of being at hand when needed
翻譯: 指在需要時能夠立即使用或接觸到的特性。
空閒狀態
EN: the state of being free to do something or meet someone
翻譯: 指人是否有空閒時間或可以接受安排會面的狀態。
供應量
EN: the amount of something that exists and can be used
翻譯: 指某種資源或商品在市場上存在的總量或供應程度。
小提醒：注意 'availability' 是抽象名詞，通常不可數，但當指不同種類或來源的『可取得性』時，偶爾可見複數形式 'availabilities'。
點擊下方的 US / UK 按鈕可播放發音。
Real-life Examples of "Availability" from YouTube Videos
Wingham Rowan: A new kind of job market
TED
“Their availability for work can be such that it's "A few hours today, Maybe I can work tomorrow, but I don't know if and when yet", And it's extraordinarily difficult for these people to find the work that they so often need very badly, Which is a tragedy, because there are employers who can use pools of very flexible local people booked completely ad hoc around when that person wants to work.”
1. the state of being able to be used, obtained, or accessed
可用性；可取得性；可及性
The availability of fresh water is a major concern in this region.
這個地區的淡水可用性是一個主要問題。
We need to check the availability of the meeting room before we schedule it.
我們在安排會議之前，需要先確認會議室的可用性。
2. the state of being free or ready to do something
（人的）空閒；可出席狀態
Please let me know your availability for a call next week.
請告知我您下週是否有空進行通話。
The doctor's availability is limited to Tuesday afternoons.
這位醫生只有星期二下午有空。
3. the quality of a system or resource being operational and ready for use
（系統或資源的）在線率；運作可用性
The server has an availability rate of 99.9%.
這台伺服器的在線率達到 99.9%。
High availability is a critical requirement for our cloud services.
高可用性是我們雲端服務的關鍵要求。
| Pattern | Meaning | Example |
|---|---|---|
| availability + of + noun | ...的可用性 | The availability of fresh water is crucial for survival. (淡水的可用性對生存至關重要。) |
| check the availability of + noun | 查詢...的可用情況 | Please check the availability of hotel rooms for those dates. (請查詢那些日期的飯店房間可用情況。) |
| limited availability | 有限的供應/可用性 | This special edition has limited availability. (這個特別版供應有限。) |
| high/low availability | 高/低的可用性 | The high availability of the service ensures minimal downtime. (該服務的高可用性確保了最短的停機時間。) |
| noun + availability | ...的可用性 | We need to improve our product availability in the market. (我們需要提高我們產品在市場上的可用性。) |
availability of 最為常見，用於描述數據、資源或服務的狀態。availability for 來表示其時間安排上的空檔。
EN: The availability of fresh water is crucial for the village.
翻譯: 乾淨用水的可取得性對這個村莊至關重要。EN:Please check my availability for a meeting next Tuesday.
翻譯:請確認我下週二是否有空開會。
一般情況下，描述事物或資源的「存在與否」用 availability of，而描述人「是否有空參與」則用 availability for。
availability vs accessibility
「availability」強調某物是否存在或可取得；「accessibility」則強調取得或使用的難易程度。
availability vs presence
「availability」指可供使用的狀態；「presence」僅指存在的事實，不保證可使用。
availability vs supply
「availability」是可供使用的狀態或程度；「supply」是具體的庫存數量或供應行為。
在轉述他人詢問或討論時，常用來引入話題。 EN: "So, I asked about the availability of the conference room, and they said it's booked all week." 翻譯: 所以我問了會議室的可用性，他們說整個星期都被預訂了。
EN:"He was checking the availability of flights before he confirmed the dates."
翻譯:他在確認日期前，先查了航班的可訂位狀況。
在對話中強調某物的稀缺性或有限性，常與表示限制的詞連用。 EN: "Limited availability on those tickets, so you better decide fast." 翻譯: 那些票數量有限，所以你最好快點決定。
EN:"Due to high demand, availability is extremely tight right now."
翻譯:由於需求很高，現在的可用性非常緊張。
在組織思緒或尋找合適詞語時，作為一個較正式的填充語使用。 EN: "We need to consider... the availability of resources before moving forward." 翻譯: 我們需要考慮…資源的可用性，然後再繼續推進。
EN:"The main issue is, uh, the availability of skilled staff in this area."
翻譯:主要的問題是，呃，這個領域熟練員工的可聘用性。
正式書寫注意：在非常正式或學術的書面報告中（如研究論文、法律文件），建議使用更精確的替代詞，如 "supply", "accessibility", "inventory levels" 或 "the extent to which something is obtainable"，以避免口語感。
availability of
availability of [something]
某物的可用性
check availability
check (the) availability
查詢是否有空位/庫存
limited availability
limited availability
數量有限/機會有限
subject to availability
subject to availability
視供應情況而定
high availability
high availability
高可用性
real-time availability
real-time availability
即時庫存/空位資訊
widespread availability
widespread availability
廣泛普及/隨處可得
×The availabilities of the product are limited.
✓The availability of the product is limited.
"Availability" is an uncountable noun and does not have a plural form in standard usage. Use the singular form with singular verb agreement.
×I will confirm you the availability.
✓I will confirm the availability to you. / I will confirm with you regarding the availability.
The verb "confirm" is not used with an indirect object pronoun (you) directly before the direct object (the availability). Use the preposition "to" or rephrase.
×The doctor's availabilities are on Monday and Wednesday.
✓The doctor is available on Monday and Wednesday. / The doctor's availability is on Monday and Wednesday.
Using the plural "availabilities" to mean "times when someone is available" is non-standard. Use the adjective "available" or the singular noun "availability".
×We discussed about the availability of resources.
✓We discussed the availability of resources.
The verb "discuss" is a transitive verb and does not require the preposition "about". The object follows directly.
×The hotel has good availability.
✓The hotel has good availability. / There is good availability at the hotel.
While this sentence is grammatically correct, it can sound vague. It's often clearer to specify what is available (e.g., rooms, dates) or use the structure "There is availability for...".
×Please inform me for the availability.
✓Please inform me of the availability. / Please let me know about the availability.
The correct preposition to use with the verb "inform" in this context is "of", not "for".