Lemmas
n. 前题（助定理）
✅ 同义词
🗣️ 情景例句
Well, that must be him.
噢，一定是他。
It is wisdom sometimes to seem a fool.
大智若愚。
he had great difficulty in controlling the car because a tyre burst during the first run.
但他很难把汽车控制住，因为在开始的行程中爆了一只轮胎。