✅ 同义词
🗣️ 情景例句
If you have any trouble, let me know.
如果你有任何的麻烦，请告诉我。
Who is the auther of this essay?
谁是这论文的作者？
In fact, I was a bit frightened and didn't know what we should do.
事实上我有点害怕，不知道我们该怎么办。