…以内 / …之内 …yǐnèi / …zhīnèi

…以内 / …之内（…yǐnèi / …zhīnèi）means “…以内 / …之内: within (a range, time or amount)”. Both mark 'not exceeding a boundary' — within a span of time, a distance, or an amount: 一周以内 = within a week, 三公里之内 = within three kilometers. Formation: 时间 / 数量 / 范围 + 以内 / 之内

…以内 / …之内: within (a range, time or amount)

HSK5

Formation

时间 / 数量 / 范围 + 以内 / 之内

Explanation

Both mark 'not exceeding a boundary' — within a span of time, a distance, or an amount: 一周以内 = within a week, 三公里之内 = within three kilometers. 以内 and 之内 are almost interchangeable; 之内 is a touch more formal. The word order is quantity + 以内/之内.

Examples

请在一周 以内 回复。
qǐng zài yì zhōu yǐnèi huífù.
Please reply within a week.
三公里 之内 都有地铁站。
sān gōnglǐ zhīnèi dōu yǒu dìtiě zhàn.
There are subway stations within three kilometers.

Note

Opposite of 以外/之外 (outside/beyond). Order: quantity + 以内/之内.

FAQ

…以内 / …之内 — what does it mean and how is it used?

…以内 / …之内: within (a range, time or amount). Both mark 'not exceeding a boundary' — within a span of time, a distance, or an amount: 一周以内 = within a week, 三公里之内 = within three kilometers. 以内 and 之内 are almost interchangeable; 之内 is a touch more formal. The word order is quantity + 以内/之内.

…以内 / …之内 — how do you form it?

时间 / 数量 / 范围 + 以内 / 之内

…以内 / …之内 — any usage notes?

Opposite of 以外/之外 (outside/beyond). Order: quantity + 以内/之内.

Related grammar

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