3楼zuopyu
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发表于 2009-4-10 22:06
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回复 10#nice妈妈 的帖子
THX. Since now, I bagin to learn. So, the first thing is explain some word that I didn't catch the meaning in first time. Proficiency>Proficient: Having or marked by an advanced degree of competence, as in an art, vocation, profession, or branch of learning..