•Amazingly, the bullet did not penetrate his brain.令人惊讶的是，子弹并未射入他的脑部。

•In a normal winter, the frost penetrates deeply enough to kill off insect eggs in the soil.在正常的冬季里，霜会深深渗入土壤，足以杀死昆虫的卵。

•The organization had been penetrated by a spy.一名间谍渗入了该组织。

•The company has been successful in penetrating overseas markets this year.今年，该公司成功地打入了海外市场。

•Our eyes couldn't penetrate the dark/ the gloom of the inner cave.洞内一片黑暗／昏暗，我们甚么也看不见。

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•It's hard to penetrate her mind.了解她的内心很难。

•He penetrates deeper into the artist's life in the second volume of his autobiography.他透过这位艺术家自传的第二册对其生平作了更深入的探究。