应该是：people don't know THAT they don't know

来源: hello2002 于 2016-09-23 10:03:50 [] [旧帖] [给我悄悄话] 阅读数 : (0 bytes)

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• roflmao...if i replace "people" with "we" (you and i), it would -老生长谈- ♂ 给 老生长谈 发送悄悄话 (278 bytes) () 09/23/2016 postreply 18:43:43

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