Thanks! Any hints or comments on usage?

本帖于 2013-10-20 16:19:16 时间, 由普通用户 京燕花园 编辑
回答: 有些英语不能不懂装懂!朝九晚五2013-10-15 14:23:21

Are these British English? Or American? Or somewhere else? What should one pay attention to when using these?

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