单元

dānyuán

HSK 5

单元 — dānyuán

1. unit (forming an entity); a discrete part or module

   这个课程分成若干个单元，每个单元都有练习题。 zhège kèchéng fēnchéng ruògāngè dānyuán měigè dānyuán dōu yǒu liànxítí — This course is divided into several units; each unit has exercises.

2. element; component (part of a larger system)

   化学方程式中每个单元都很重要。 huàxué fāngchéngshì zhōng měigè dānyuán dōu hěn zhòngyào — Each element/unit in the chemical equation is important.

3. entrance/staircase block in a residential building (a section of an apartment complex)

   我们住在三号楼的二单元，楼下就是快递柜。 wǒmen zhù zài sānhào lóu de èr dānyuán lóuxià jiùshì kuàidì guì — We live in Building 3, Unit 2; there's a parcel locker downstairs.