Adjustable pitch-propeller
[机] 可调整螺距桨
🧩 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
It probably means he's clearing his throat.
也许表示他正在清喉咙。
You must go to the moon. It's your duty.
你必须上月球去，这是你的职责。
I took a burning branch from the fire and went to examine the rock.
我从火堆中拿起一根燃着的树枝，走过去检查那个岩石。