Screw impeller
[化] 螺旋葉輪
?? 詞語組成解析
screw
[skru]
n. 螺絲釘;螺旋槳，螺旋狀物;（螺絲的）轉，扭;吝嗇鬼;
vt. 用螺絲擰緊;扭曲（某人的面孔）;〈俚〉占便宜，詐騙;
vi. 扭轉，扭歪;旋緊;（和某人）性交;
n. 推進者, 葉輪\\n[化] 葉輪
??? 情景例句
He doesn't have any family with him.
他沒有家人和他在一起。
Marriage goes by contrasts.
夫妻之間難免有差異。
On the other hand, your stomach would turn at the idea of frying potatoes in animal fat -- the normally accepted practice in many northern countries.
另一方面，你一想到動物油炸土豆就會反胃，但這在北方許多國家卻是一種普通的烹任方法。