Once it gets in a person's lungs, the alveoli, or air sacs that take in oxygen, swell and fill up with fluid.

一旦病原体进入肺部，肺泡(类似吸入氧气的气囊)就会肿胀并充满积液。

youdao

In both cases, once it gets started, go do something else for a couple of hours.

不论在哪种情况下，只要一开始，就可以转身做其他事情，等几个小时再回来。

youdao

It gets weaker every time you ignore it so listen to it every once in a while.

而你越忽视(内心)，心灵的声音就越微弱，因此，你需要时常倾听自我心声。

youdao

"The more people we can get on the roads with bikes the better." There will be 6,000 bikes available, and the mayor hopes once it gets rolling, this system will result in 40,000 bike trips a day.

VOA: standard.2010.07.30

But once in awhile, one of these plus twos comes in almost on axis, and it gets whipped around by the Coulombic repulsive forces.

但是偶尔一个带两个正电荷的粒子,以接近于轴的位置进入，会快速的移动到周围,由于库仑斥力的作用。

麻省理工公开课 - 固态化学导论课程节选

We sense food coming in, that sets into gear a series of metabolic and biological processes that are very interesting, and then of course once the food gets in the body it does lots of interesting things-- some good things and some bad things.

美食当前,食指大动,身体从而启动一系列新陈代谢过程,和有趣的生物过程,而且,当食物进入身体,它就产生许多有趣的效应,这些效应有好有坏

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Once it gets in the physician's door, Abaxis has a relatively easy case to make: The Piccolo's results are quick and accurate, and internists and family doctors, who might use a half-dozen disks a day, can recoup their investments in a hurry.

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Sageworks CEO Brian Hamilton has said that the U.S. economy tends to keep moving in the same direction once it gets going, giving him hope that things are getting better.

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"Nasri is an excellent footballer, great feet, and once he gets in those positions in the area it's very difficult to stop him, " said Hughes.

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