Variable-pitch propeller
可调螺距螺旋
🧩 词语组成解析
pitch
[pɪtʃ]
n. 场地;最高点;音高;说教;
vt. 用沥青涂;扔，投;树起，搭起;定位于;
vi. 抛，扔;[棒球]当投手;搭帐篷;向前跌或冲;
🗣️ 情景例句
All right. Is...is Susan coming?
好吧， Susan来吗？
Let us talk about it at our leisure.
那件事我们有空再谈吧。
The best time to come to China is in spring or autumn.
到中国来，最好的时间是在春天或者秋天。