Punchbag
n. 沙袋
✅ 同义词
🗣️ 情景例句
Don't litter.
请不要乱扔东西。
We must make it clear from the very beginning that competitive quotations are acceptable.
必须一开始就讲清的是，有竞争力的报价可以接受。
We need to make some changes in this contract.
这份契约有几个地方需要修改。