The plane is an eight-seater with twin propellers.这架飞机有8个座位,靠双螺旋桨推进。The water was thrashing and churning about under the propellers.水在螺旋桨下面打旋、翻滚.The ship's propellers churned the waves to foam.轮船的推进器将海浪搅出泡沫....
这种滴耳剂怎么使用?How do I apply the ear drop?我怎样使用滴耳剂 呢 ?P: How do I apply the ear drops?建立了复方盐酸环丙沙星滴耳剂中盐酸环丙沙星与氢化可的松的HPLC测定法.HPLC method for determination of ciprofloxacin hydrochloride and hydrocortisone in compound ciprofloxa...