The heart is a vital organ.

心脏是维持生命必须的器官。

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The liver is a vital organ.

肝脏是极其重要的器官。

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I was just happy that the cancer had not invaded a vital organ.

癌细胞没有入侵到其他重要的器官，我就已经很开心了。

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A hit in a vital organ causes either instant death or a massive exit wound.

要害器官遭受枪击会导致立即死亡或严重的穿透伤。

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A hit in a vital organ causes either instant death or a massive exit wound.

要害器官遭受枪击会导致立即死亡或严重的穿透伤。

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