应当

• Pinyin: yīng dāng
• Hanzi breakdown: 应 = 广 (roof) + 一 + 心 (heart), simplified from 應; 当 = simplified from 當, meaning 'ought to'

Meaning

Should; ought to. Expresses moral obligation or what is considered proper and reasonable.

More formal than 应该 and often used in written Chinese, official documents, and formal speech. Carries a stronger sense of duty or moral obligation. Interchangeable with 应该 in most contexts but preferred in formal registers.

Examples

1. 我们应当尊重每一个人。 We should respect every person.
2. 学生应当按时完成作业。 Students should complete their homework on time.
3. 你应当先了解情况再做决定。 You should understand the situation first before making a decision.

Usage Guide

Context: official, academic, moral

Tone: serious

Do Say

• 我们应当保护环境。(We should protect the environment.)
• 每个人应当遵守法律。(Everyone ought to obey the law.)

Don't Say

• 你应当吃这个冰淇淋，很好吃！(Don't use 应当 for casual suggestions — use 应该 or 可以试试 for informal recommendations)

Origin & History

应 (should, respond) + 当 (should, ought to). Both characters carry a sense of obligation, forming a formal compound for 'should.'

Cultural Context

Generation: All ages

Social background: Universal