be of use

基本解釋

But he believes that theory, to be of use, must keep its feet on the ground.
但他相信，具有實(shí)用價(jià)值的理論必須要能與實(shí)際的生活情況相結(jié)合。
County attorney : Yes , but I would like to see what you take , Mrs Peters ,and keep an eye out for anything that might be of use to us .
縣法官：是的。但我想要看看你拿的東西，彼得斯夫人，請(qǐng)睜大眼睛注意可能對(duì)我們有用的任何東西。
"It is a general principle of psychology, " observed the grandfather of the discipline, William James, "that consciousness deserts all processes where it can no longer be of use."
“這是心理學(xué)的一個(gè)普遍原則”，根據(jù)心理學(xué)科創(chuàng)始人威廉·詹姆斯的觀察，“意識(shí)會(huì)丟棄所有不再有用的過(guò)程”。

He ordered them to destroy everything that might be of use to the enemy.
They like to--when they're computing the investment yield, they want to be completely honest and not use any rules of thumb.
當(dāng)他們計(jì)算投資收益率的時(shí)候,他們需要完全精確,而非用經(jīng)驗(yàn)公式
耶魯公開(kāi)課 - 金融市場(chǎng)課程節(jié)選
We could use the name of a genre, and I'll be talking a lot about genre in this course.
我們可以用某種音樂(lè)風(fēng)格描述它,本課程中,我將會(huì)談到很多音樂(lè)風(fēng)格
耶魯公開(kāi)課 - 聆聽(tīng)音樂(lè)課程節(jié)選

Her cancer, she says, has spread so widely, touching her brain and liver that Avastin would no longer be of use to her.
FORBES: Britain's Cancer Calculus