In the lab, they infected those cells with a virus carrying genes that create T-cell receptors, essentially homing devices for, in this case, melanoma.

在实验室，他们用病毒感染那些细胞，这种病毒携带有能产生T细胞受体的基因，在这个例子中，实质上就是产生黑色素瘤导归器的基因。

youdao

Also, by definition, Opportunities (o) and Threats (t) are considered to be external factors over which you have essentially no control.

同时，根据定义，机会(O)和威胁(t)被认为是你基本上无法控制的外部因素。

youdao

So that we don't have two Marines essentially standing over his wife while he was off.

VOA: standard.2010.04.06

I mean they take up a teeny bit but essentially when we're thinking about the set up of the atom, we don't have to account for them as using up a lot of the mass we're discussing.

所以我们可以假设电子没有质量,它们占据了，非常小的一部分,所以当我们考虑,原子的构造的时候,不用考虑它们的质量。

麻省理工公开课 - 化学原理课程节选

Priests, these are the bishops of the old system, have changed their name to presbyters, perhaps, and they look like revolutionaries, but they're manipulative, controlling actions haven't essentially changed at all.

牧师，这些是旧制度的主教，或许已经把名字变为长老，他们看起来像革命者，但其实他们的操纵，控制的行为并没有改变什么。

耶鲁公开课 - 弥尔顿课程节选

Isn't that essentially agreeing with the Supreme Court decision that's calling it a tax?

WHITEHOUSE: The White House

Representative DEBBIE WASSERMAN SCHULTZ (Democrat, Florida): There's far more that needs to be done beyond extending the deadline, but at the very least we need to make sure that seniors don't face what is essentially a Bush prescription drug tax for every day that they don't sign up after Monday.

NPR: Bush Hits Road to Urge Seniors Into New Drug Plan

They argue that the market hasn't worked as it essentially has become a means of avoiding real carbon cuts by paying someone else to do them.

BBC: Green energy on the back foot after carbon trading blow