该

• 拼音: gāi
• 汉字拆解: 该 = 讠(speech radical) + 亥 (phonetic component) — originally related to speech obligations

含义

Should; ought to. Indicates that something is expected or appropriate to do.

A very high-frequency auxiliary verb expressing obligation, expectation, or what is fitting. Similar to 应该 but slightly more colloquial. Can also express that it is someone's turn (该你了 = it's your turn).

例句

1. 天晚了，我们该回家了。
2. 这件事我该怎么办？
3. 该你了，轮到你说了。

用法指南

语境: advice, daily decisions, turn-taking

语气: advisory

正确说法

• 我们该走了。(We should get going.)
• 该吃饭了，别玩手机了。(It's time to eat — stop playing with your phone.)

错误说法

• 在非常正式的写作中，用'应该'代替'该' — 该 is slightly more colloquial; for formal writing or speeches, 应该 is more appropriate.

起源与历史

Ancient Chinese character originally meaning 'to be one's due' or 'to owe.' Over time it developed the modal auxiliary sense of 'should' or 'ought to.'

文化背景

世代: All ages

社会背景: Universal