Introductive
a. 介绍的, 前言的, 序文的
🗣️ 情景例句
Is it too early to call Mr. Carlson?
现在打电话给Carlson先生会不会太早了？
I don't know where I am.
我不知道我身在何处。
We realized that they must have become unduly frightened by the rising flood,
我们意识到他们一定是被不断上涨的洪水吓坏了。