用这些药物来降低胆固醇，你的血液会被污染得越来越严重，而且你的血液循环会减慢。
Lower your cholesterol with these drugs and your blood will get polluted more and more along with decreased blood circulation.
如果有被污染的血液残留在针的内孔或注射器里，然后有人使用它进行毒品注射的话，残留的血液可能会进入血液循环系统中。
If HIV infected blood remains within the bore (inside) of the needle or in the syringe and someone else then uses it to inject themselves, that blood can be flushed into the bloodstream.
全世界的河流、湖泊和含水土层的减少速度超过了大自然循环水资源的速度；工业和生活用化学物质正迅速污染仅有的水源。
Around the world, rivers, lakes, and aquifers are dwindling faster than Mother Nature can possibly replenish them; industrial and household chemicals are rapidly polluting what's left.
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