His familiarization with several operating system make him the best candidate for this position.

由于熟悉好几种操作系统，他成了这个职位的最佳候选人。

youdao

His familiarization with several operating system make him the best candidate for this position.

由于熟悉好几种操作系统，他成了这个职位的最佳候选人。

youdao