Jackscrew
n. 螺旋起重机\\n[医] 螺旋正牙器
🗣️ 情景例句
He keeps good company.
他和好人来往。
Do you have a ball point pen?
你有圆珠笔吗？
People have been talking of it a lot recently.
近来人们对这事谈得很多。