退兵中的队伍失去了他们的目标，更容易成为靶子，Pagonis说。
Departing troops lose their focus and become easy targets, says Pagonis.
HAART以病毒本身为靶子，与这种疗法使用的药物有所不同的是，二甲胺四环素采取的是导向目标追踪方式，调节免疫系统的主要行动者以及HIV感染目标T细胞。
Unlike the drugs used in HAART which target the virus, minocycline homes in on, and adjusts t cells, major immune system agents and targets of HIV infection.
这太不公平了。对他来说，这一直以来就是移动的靶子。靶子是我们一直想要打中的东西或是一个想要达到的目标。
It's just no fair. With him, it is always a moving target! A target is something you want to hit or a goal you want to reach.
所以，移动的靶子意思是目标一直改变。有些人用这个把戏使目标变难——甚至是不可能——达到。
So, a moving target is a goal that keeps changing. Some people use this trick to make a goal harder — or even impossible — to reach.
目标就是你想要命中的靶子，或你想要实现的目的。
A target is something you want to hit or a goal you want to reach.
靶子是我们一直想要打中的东西或是一个想要达到的目标。
A target is something you want to hit or a goal you want to reach.
所以，移动的靶子意思是目标一直改变。
然后，一旦你击中了目标靶子，你能够往下一步继续前进。
Then, once you've hit that target, you can move on to the next one.
然后，一旦你击中了目标靶子，你能够往下一步继续前进。
Then, once you've hit that target, you can move on to the next one.
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