1. And I assume this did wonders for devon's tourism.
我猜这对Devon的旅游事业也大有裨益吧。

do wonder for...
对...有裨益

eg:It will do no wonder for you if you are always staying up late.
总是熬夜对你一点好处也没有。

2. The girl across the aisle fancied you.
过道对面的女孩对你有意思。

fancy
喜爱,想要

eg:We fancy the big oval one, in the middle.
我们想要那间位于中间的椭圆形的大屋。

3. How on earth did you notice all that?
你究竟是怎么推断到那些的?

on earth
究竟

eg:What a mess! What on earth is history? A poem, a ship, a contract or lies?
真是一团糟！历史究竟是什么？一首诗，一艘船，一项合同，还是谎言？

4. I've been cooped-up for ages!
我都闷了这么长时间了！

coop-up
把...关起来，禁闭

eg:It is not healthy for a young guy to stay coop up inside.
年轻小伙子关在房间内是无益于健康的。