Bio-markers help researchers know what is happening in the bodies of people with a disease or medical condition.

VOA: special.2011.08.02

We know we need to divide by 266, 266 but what we need you to help us with is to figure out this top number here and see how many particles are going to backscatter. So if the TAs can come up and quickly hand out 1 particle to everyone.

知道背散射的概率就可以了，我们知道要除以,但还需要你们来搞清楚,分子上的数是多少，有多少个发生背散射的粒子,助教们请过来,把这些球分给同学们。

麻省理工公开课 - 化学原理课程节选

to other people, because even no matter what, with parents or with no help,

在其他人眼中，无论是有父母的帮助，或是没有任何人从旁协助，

对你而言，钱是？ - SpeakingMax英语口语达人

It's a hopeless situation for them,". "They expect us to provide them with help,which is of course, what we want to do.

VOA: standard.2010.01.14

Because that's really complicated and hard, and that's what we help with.

因为法律体系真的很复杂，也很难理解。这正是我们能给他们提供援助的地方。

我帮助过的人们 - SpeakingMax英语口语达人

General Jacoby says the Iraqi and Kurdish forces have begun to put aside political differences and, with American help, start to build what he called "a security architecture."

VOA: standard.2009.12.12

It is not clear what it will be able to do to help revive energy talks with Uzbekistan, Kazakhstan and Turkmenistan, During negotiations in the Czech capital,Prague, the three natural-gas producing nations were not convinced by E.U.offers of more trade and stronger transport links in exchange for their participation in a multi-billion-dollar gas pipeline, known as Nabucco.

VOA: standard.2009.05.11