Glad to hear that.

来源: 婉蕠 2009-12-30 10:39:25 [] [博客] [旧帖] [给我悄悄话] 本文已被阅读: 0 次 (71 bytes)
回答: 地道英语:pop out & pop in(英语听力)婉蕠2009-12-30 09:12:52
It may be used more often in British English than in American English.
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