Phrase
expiration date
有效期；失效日期
A date by which an object either should not be used or loses its value, depending upon the item.
- 1.
A date by which an object either should not be used or loses its value, depending upon the item.
某物品不应再使用或失去价值的日期,具体取决于物品类型。
某物品不应再使用或失去价值的日期,具体取决于物品类型。；有效期限；截止日期
In use
Always check the expiration date on food packaging before buying.
My credit card's expiration date is next month, so I need to request a new one.
The coupon has passed its expiration date and can no longer be used.
expiration date of [noun]
Check the expiration date of the medicine.
检查药品的有效期限。
[verb] the expiration date
常见动词有 check, verify, see, look at 等。
Please verify the expiration date before purchase.
购买前请核实截止日期。
subject + expiration date + [be] [date/time]
The expiration date is March 15, 2025.
有效期限是2025年3月15日。
before/after the expiration date
Do not use the product after the expiration date.
过期后请勿使用该产品。
Common mistakes
The expire date is tomorrow.The expiration date is tomorrow.
学习者误将动词expire当作名词使用，应使用名词短语expiration date作主语。
The deadline of this milk is March 1st.The expiration date of this milk is March 1st.
deadline常用于任务截止时间，而expiration date指物品的有效期限，尤其是食品或药品，此处应使用expiration date。
Connections
Confusing words
- expiry date
- 有效期，到期日 · expiry date与expiration date同义，但前者主要用于英式英语，后者用于美式英语；学习者可能因地区差异混淆。
- best before
- 最佳食用日期 · best before指食品在最佳品质前的日期，过期后仍可安全食用；而expiration date通常指安全食用的最后期限，过期后不宜食用。
Word family
- expire
- 到期，失效 · expire (base)
- expiration
- 到期，期满 · expire + -ation
- expiry
- 到期，期满 · expire + -y
- expired
- 已过期的 · expire + -ed
Learner notes
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.