Definition
This is a fixed expression (not a chengyu) that literally means 'not big, not small' but is used to say something is just the right size, age, or amount — neither too much nor too little. You can use it for clothes fitting well, someone being the right age for a task, or a portion being just enough. It carries a feeling of appropriateness and is often placed after the verb 是 or at the end of a sentence as a complement.
f.e.
just the right size or ageneither too big nor too smallneither too young nor too old
Examples
- 不大不小，。Zhè jiàn yīfu wǒ chuān bú, zhèng héshì.This piece of clothing fits me perfectly, just the right size.
- 不大不小，。Tā bú de niánjì, zuò zhège gōngzuò hěn hǎo.He's just the right age for this job.
- 不大不小，。Zhèxiē cài bú, wǒmen liǎ zhènghǎo chīwán.This amount of food is just right; we two can finish it just fine.
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