simple coacervation
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They are just simple country folk.（英译中)
【C16】A．hereB．easyC．simpleD．this
【C16】A．openB．pureC．simpleD．weird
【C5】A．easyB．relaxedC．simpleD．ready
complex coacervation
A. importantB. interestingC. simpleD. surprising
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