Art的同源词
* craft
n. 小船，船
Hundreds of small craft bobbed around the liner as it steamed into the harbor.
班轮驶进港口时,周围的许多小船颠簸起来。
* aircraft
n. 飞机；航空器
fighter / transport / military aircraft
战斗机；运输机；军用飞机

* spacecraft
n. 航天器；宇宙飞船； 太空船
* satellite
n. 人造卫星
the launch of a communications and weather satellite
气象通讯卫星的发射
* launch
v. 开始从事,发起,发动(尤指有组织的活动)
to launch an attack / invasion
发起攻击；发动侵略