回复：New Concept English III -39 (01/13/10)

来源: selfselfself 于 2010-01-14 10:09:43 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

(R)oad, Wonde(r)ing: raise the middle of the tongue, press the tip of the tongue lower
a(v)oid: lower teeth bite into upper lip

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