certainly单词讲解视频

时间:2024-10-15 01:22:31

1、certainly:ad.当然;一定。

certainly单词讲解视频

2、词根为cert,为相信的意思。

certainly单词讲解视频

3、例句:I certainly have to be very optimistic(我非常确信我变得很乐观)。

certainly单词讲解视频
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