Valid prefix
[计] 有效前缀
🧩 词语组成解析
prefix
['pri:fiks]
n. <语>前缀;人名前的称谓;前置代号（置于前面的单词或字母、数字）;
🗣️ 情景例句
Right. And the phone number?
好的。电话是多少？
Mother doesn't approve of her smoking.
母亲不赞成她吸烟。
Be careful! Don't throw your cigarette out of the window. If you do that, you may start a fire. Put it out in the ashtray.
当心！别把香烟丢到窗外。要是你那样做，会引起火灾的。把它熄灭在烟缸里。