Security councl
联合国安全理事会
🧩 词语组成解析
🗣️ 情景例句
Lacks knowledge or experience.
知识匮乏或经验不足。
What is he doing today?
今天他在做些什么？
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。