[[求助与讨论]] biennial  biannual

发表于 2007-4-9 09:59:28 | 显示全部楼层 |阅读模式

Our school doctor recommends biannual visit to the dentist,I am going to the dentist’s for the second time this year.
The sophomores and seniors are taking the biennial exam this afternoon.

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[[求助与讨论]] biennial&nbsp; biannual

[[求助与讨论]] biennial biannual