1.prone to 易于；傾向于

As they shorten, cells become more prone to disease and death.
細胞變小后就會更容易感染疾病，也更容易死亡。

He's prone to flit between subjects with amazing ease.
他往往會輕松自如地轉換話題。

2.compare to 比作；與…相比

How does this final presidential debate stack up and compare to the others, do you think?
你認為這最后一次總統競選辯論和其他幾次相比怎么樣？

He programmed his computer to compare all the possible combinations.
他給他的計算機編制了一套程序，以比較所有可能的組合。

3.at the expense of 以為代價；付費

The orchestra has more discipline now, but at the expense of spirit.
那個管弦樂團現在更有紀律性了，卻喪失了靈魂。

They are worth having but not at the expense of better services.
它們值得擁有，但是不能因此放棄更好的服務。

4.shift to 轉向；轉變成為

They see the shift to the right as a worldwide phenomenon.
他們認為政治上的右翼傾向是一個世界現象。

Some suppliers were selling at a loss to shift stock.
一些供應商賠本銷售存貨。