问天山一道

Unlike the short flights of the shuttle and earlier spacecraft, which carried sufficient power in fuel cells and batteries, a permanently orbiting space station will have to generate its own electricity.

B: the shuttle and earlier spacecraft, with sufficient enough power in fuel cells and batteries for their short flights

D the shuttle and earler spacecraft, which were capable of carrying sufficient power in fuel cells and batteries for their short flights.

在讨论区看到都是讨论B为什么不对的,我想问D里面的were为什么用复数？

呼唤版主啊

continue to up

不是的，enough对的你去大全里可以搜到好几个。

enough是个小错误，放到后面排除。（以前也有个帖子专门总结了下enough的）

PS:可能是没人做天山，都直接做GWD了...所以楼主的帖子就沉了，不要气馁啊...大家肯定没这意思的