unmanned
adj. 无人的;无人操纵的;被阉割的
v. 使失去男子气质(unman 的过去式和过去分词形式)
例句
A rescue plan could be achieved by sending an unmanned module to the space station.
营救计划可以通过向空间站发送一个无人舱来完成。
《柯林斯英汉双解大词典》
Elon Musk's Space X aims to send an unmanned aircraft to Mars by 2018.
埃隆·马斯克的太空探索技术公司计划在2018年之前将一架无人驾驶飞机送上火星。
They say it could be reached by an unmanned spaceship before the end of the century in time for people alive today to see it.
他们说,在本世纪末之前,无人驾驶的宇宙飞船就能到达那里,让今天活着的人们及时看到它。