You know,maybe I'll put together some photos of Grandpa as a welcome present.
我说,或许我把爷爷的一些照片组合起来,作为欢迎他的一份礼物。
As a shipbuilder, Cockerell was trying to find a solution to the problem of the wave resistance which wastes a good deal of a surface ship's power and limits its speed.
作为一个船舶技帅,科克雷尔在寻找解决波浪阻力的方法,因为波浪阻力浪费掉了船在水面行驶的大量动力,从而限制了船的速度。