She needs to know this enzyme works by both acid base chemistry, and oxidation reduction.

她要知道酶催化，她需要知道这种酶,在酸碱环境下的反应和氧化还原反应。

麻省理工公开课 - 化学原理课程节选

This needs to be complete by the end of today.

这需要在今天之内做完。

I don't know 课堂 - SpeakingMax英语口语达人

Now, daily values are established by the government, how much nutrients the typical person needs and then how much--what percentage of that a food provides.

每日建议摄取量是由政府制定的,代表普通人的日营养需求量,这里给出了该食物所能提供的百分比

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

The new prince, as we've seen, must know how to use religion but needs to learn how not to be used by religion, must not become a dupe of the religious.

正如我们所看到的，这种新型君主必须知道,如何去利用宗教而不是被宗教所利用,必须避免成为受宗教愚弄摆布的对象。

耶鲁公开课 - 政治哲学导论课程节选

That is a new part of India's economy, and to the extent that by globalization, one needs more foreign investment and increased connection to foreign trade they are playing a role but India's economy growth is largely being driven by internal investments.

那也是印度经济,新的组成部分，从某种层面来说，由于全球化，经济发展需要,吸引更多外资，促进外贸,这些因素确实起了作用,但印度经济增长大部分还是靠,国内投资。

普林斯顿公开课 - 国际座谈会课程节选

It occurs because blood flow gets reduced in that blood vessel and so the heart muscle, which is actively beating all the time, needs large quantities of oxygen provided by blood can't get the blood through the vessel.

发病原因是冠状动脉血流量降低,因为心肌搏动永不停歇,随时需要血液供给大量氧气,发病时血液无法正常流过血管

耶鲁公开课 - 生物医学工程探索课程节选

And so it's an understandable ploy on Milton's part that he needs to vilify Shakespeare by identifying that great poet, his older contemporary, with Comus.

所以就弥尔顿而言，是一个可理解的事,他需要通过认同那伟大的诗句来贬低莎士比亚，用Comus来压倒比他年纪较大的同时代人。

耶鲁公开课 - 弥尔顿课程节选