✅ 同义词
🗣️ 情景例句
Sorry, I couldn't help overhearing, did you mention something about...
对不起，我无意中听到你们的谈话，你们是不是提到...
There are many training classed and night classes.
有许多培训班与夜校。
There is a river in the picture.
画里面有一条河。