be competent to do/at

These younger volunteers would be familiar with and competent using technologies such as activity trackers.

问:我觉的这个句子是不是错的?be familiar with be competent to 是并列的两个短语而此处competent后没有介词 to,有be competent at doing sth: 在某事/方面有才干,擅长某事, 难道这里的at可以省略吗?

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最佳答案 2021-11-05 14:25

These younger volunteers would be familiar with and competent using technologies such as activity trackers.= These younger volunteers would be familiar with and competent in using technologies such as activity trackers. (说明:动名词前面的介词  in 通常可以省略)

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  • BLUEBELL 提出于 2021-11-04 14:57

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