VOA慢速英语2011.11.28
[audio]http://sound.yywz123.com/tingbbs/voa/voa20111128.mp3[/audio]But you can have too much of a good thing.
但是物极必反。
The glands in the ear canal that produce the wax make too much in some people. Earwax is normally expelled; it falls out of the ear or gets washed away. But extra wax can harden and form a blockage that interferes with soundwaves and reduces hearing.
一些人耳道中的腺体分泌过多的耳垢。一般情况下耳垢会从耳内脱落并自然排出。但是过多的耳垢会变硬形成堵塞物而干扰声波，降低听力。
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注释：
gland:腺体
canal:管道，运河，沟渠
expel: 驱逐，开除，排出
blockage：堵塞，封锁，妨碍
**** Hidden Message ***** People can also cause the blockage when they try to clear out their earwax. But only push the wax deeper inside.Earwax remove is sometimes necessary, but you have to use the same method or you could do a lot of damage. But you can have too much of a good thing, the glands in the ear canal but produce the wax make too much in some people, earwax is normally expeled, it falls out of the ear or gets washed away, but extra wax can harden and from blockage that it fills with sound waves and reduces hearing.
People can also cause blockage when they try to clean out their ears, but only pushed wax deeper inside, earwax remover is sometimes necessary, but you have to use the safe method or you could do a lot of damage.
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