till/tɪl/

prep 口

1. 迄…为止

• I'll wait till six o'clock. 我会等到6点。

• We work from morning till night. 我们从早工作到晚。

2. 用于否定句 到…才…

• She didn't come back till midnight. 她到半夜才回来。

• I didn't know till now that he had left. 直到现在我才知晓他已经走了。