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
That's very considerate of you, Michelle.
真会体谅别人， Michelle。
Is there any interest on this money?
这笔透支要利息吗？
The firm closed down because there wasn't enough demand for its product.
工厂关门了，因为产品供过于求。