✅ 同义词
🗣️ 情景例句
I have just begun to learn and my serve isn't very good.
我刚刚开始学习，发球不太好。
The noisy fowler catches no bird.
捕禽人大肆声张，鸟儿就不会落网。
You mustn't come home late.You must be home at half past ten.
你不准回家太晚，你必须在10点半到家。