Jackscrew
n. 螺旋起重機(jī)\\n[醫(yī)] 螺旋正牙器
??? 情景例句
And if I can be of any help,
如果我能有所幫忙的話，
Wow, it's itchy!
嘩，好壞！
It's not like her to have missed two days of classes.
缺課兩天不太象她的作風(fēng)。