Dummy piston
[机] 均压盘轮
🧩 词语组成解析
dummy
['dʌmi]
n. 仿制品;沉默寡言的人;笨蛋，蠢货;挂名代表，傀儡;
vt. 制作样本，制作样张;不吭声，缄口;〈美俚〉装聋作哑;替别人占领土地;
adj. 假的;摆样子的，做样品的;挂名的;虚设的;
piston
['pɪstən]
n. <机>活塞;
🗣️ 情景例句
That's the deal.
这是交换条件。
I was little ill at ease.
我有点不自在。
Hay had been cut and cowsheds had been cleaned.
干草已切好，牛棚也打扫干净了。