英语语法分析

Similar machines have flown in space aboard NASA's shuttles, but they couldn't be tested for long enough to prove whether they were effective.

类似的机器也曾搭乘美国宇航局的航天飞机在太空中飞行，但无法进行时间足够长的测试来证明它们是否有效。

A bus shuttles passengers back and forth from the station to the terminal.

一辆公共汽车在火车站和公共汽车终点站之间往返运送旅客。

《牛津词典》

In this book, he includes the loss of the space shuttles Challenger and Columbia, and the sinking of the Titanic.

在这本书中，他提到了挑战者号和哥伦比亚号航天飞机的失事以及泰坦尼克号的沉没。