A company needed a submarine to submerge into the deep sea.

一家公司需要一艘潜水艇潜水至深海。

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Icebrrg use light to submerge its website deep underwater.

Icebrrg 利用光照使页面潜入水下。

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As far as Harry could judge, it was not deep, but to retrieve the sword he would have to submerge himself completely.

哈利判断，水并不深，但要拿到宝剑，他必须完全没入水中。

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Participants on a 10-to-12 mile Tough Mudder course wade through waist-deep mud, crawl under barbed wire, submerge themselves in ice water and jump through fire.

WSJ: Office Workers Run Extreme Obstacle Courses