Piston knock
[机] 活塞敲击
🧩 词语组成解析
piston
['pɪstən]
n. <机>活塞;
knock
[nɑk]
n. 短促的敲打（声）;爆震声;敲击声;敲门（或窗等）声;
vi. 猛烈敲击;与某物相撞;撞到了桌子;
vt. （心）怦怦跳;把…撞击成（某种状态）;批评;
🗣️ 情景例句
How long do you intend to stay there?
你打算在那停留多久？
When are visiting hours over?
探病的时间到几点为止呢？
From the Skeppsbron and surrounding islands the people watched this thing of beauty begin to spread her sails and catch the wind.
人们从斯开波斯布朗和周围的岛屿前来观看这艘美丽的战船扬帆起航，乘风前进。