Mathematical relationship
[计] 数学关系式
🧩 词语组成解析
🗣️ 情景例句
No, you needn't do that.
不行呀，你不必这样。
If he gets scared at the night noises, be patient with him.
如果他晚上感到害怕，请你们多多见谅。
I'd like to do some shopping, but not during the day.
我愿意买些东西，但不必白天去。