✅ 同义词
🗣️ 情景例句
I'm concerned.
我很担心。
I think it's going to be too hot.
我认为天气将会太热。
It was from the study of these that so much was learnt about the interior of the earth.
正是从这两种波的研究中，我们可以了解到地球内部的许多情况。