be used to do

基本解釋

The ondata event of a can similarly be used to do other custom updating.
類似地，的 ondata 事件可用于處理其他定制的更新。
This graphics object can be used to do vector drawing on the sprite. For example, see the code to draw a circle of radius 5
這個圖片對象可被用來在 sprite 上進(jìn)行矢量作圖。
Wind’s power — energy which can be used to do work like spinning magnets to generate electricity — varies with the cube of its speed.
風(fēng)能，能被用來旋轉(zhuǎn)磁體來發(fā)電的能量，隨風(fēng)速的立方而變化。

And,finally,do not add diseased vegetable plants to the pile if the compost will be used on a vegetable garden.
It used to be thought before people were very careful- we know that they do every terrible thing in the world in the Peloponnesian War.
人們謹(jǐn)慎行事之前曾考慮過,我們知道他們在伯羅奔尼撒戰(zhàn)爭中,做盡了世上的惡事
耶魯公開課 - 古希臘歷史簡介課程節(jié)選
Sam used to be a river raft guy, a river rafting guide, so we would go do that.
薩姆以前是漂流隊的指導(dǎo)員，所以我們可以玩那個。
與朋友們的回憶 - SpeakingMax英語口語達(dá)人

Getting the tin out of the cassiterite is pretty easy: a hand built furnace and some charcoal can be used to do it although obviously modern machinery can make it more efficient.
FORBES: After Conflict Minerals Comes The Death Metal: Tin. And It's Apple's Fault Again.