Lemmas
n. 前题（助定理）
✅ 同义词
🗣️ 情景例句
That'll be four yuan.
四元。
Whoever told you that was just joking.
无论是谁告诉你的，反正都是开玩笑。
Would you please go to a dancing party with me?
请你跟我一起去参加一个舞会好吗？