necessary for

基本解釋

I don't think it's necessary for us to huckster the date.
我認(rèn)為我們沒(méi)必要在日期問(wèn)題上沒(méi)完沒(méi)了的爭(zhēng)論。
chazidian.com
It has at least one gene necessary for photosynthesis—so far it’s the only animal known with this ability.
它有至少一個(gè)基因是光合作用所必需的——到目前為止這是唯一被發(fā)現(xiàn)具有此項(xiàng)能力的動(dòng)物。
Take care of your car, because you drive the car and you need it every day. The car is necessary for you.
所以好好照顧自己的車，因?yàn)檐囎邮悄阍陂_(kāi)，你每天都需要用到車，它是你的必需品。

He said this is necessary for the country to compete among some of the world's fastest growing economies.
The kind of discipline and self-restraint necessary for an educated mind appears, for him, to be unequally divided among human beings.
那種受過(guò)教育者,所必備的紀(jì)律與自制，對(duì)他而言似乎是不平等地,區(qū)隔了人群。
耶魯公開(kāi)課 - 政治哲學(xué)導(dǎo)論課程節(jié)選
Each of these waves is regarded as in some way necessary for the proper construction of a just city.
每一波,在某些程度上,都被視為是真正建立正義之城的必需條件。
耶魯公開(kāi)課 - 政治哲學(xué)導(dǎo)論課程節(jié)選

And the gangsters, in turn, are often necessary for the men at the top.
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