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
She cheated on the examination.
她考试作弊。
He threw a dance for them.
他为他们举行晚会。
Will you introduce me to the new purchasing agent?
请替我引介新来负责采购的人好吗？