This could cause serious damage to the country's economy.
這可能對國家的經濟造成嚴重破壞。
The database could be used as a teaching resource in colleges.
數據庫可以用作大學里的一種教學輔助手段。
I think we could all use a drink after that!
我想我們在事情辦完之后都得痛快地喝一杯。
He could just make out three people through the mist.
透過薄霧他勉強能看出有三個人。
The operation could prolong his life by two or three years.
這次手術可使他多活兩三年。