Even if bacteria did arrive on Earth from Mars, they must have died out.

即使细菌真的从火星来到地球，它们也一定已经灭绝了。

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Often a sword was issued by a lord to his retainers along with other equipment and even horses, together known as a heriot, repaid if the retainer died before his lord.

通常来说，侍从们的武器是由领主们所赐予的，通常还包含马匹与其他装备，众所周知，如果一个侍从死在他侍奉领主之前，地租（也就是租地继承税）就是对他最好的褒奖。

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No professor wants to hear about how your grandfather just died (even if it's true-which it never is), how your Jeep got totaled, or why you just spent three days in the hoosegow.

没有教授想要知道你的祖父怎么刚死的(即使这是真的——当然，多数不是)，你的吉普车怎么报废的，或是为什么你三天都呆在拘留所里。

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So, these memory cells are a way that your immune system keeps track of antigens that it's been exposed to for even if maybe the plasma cells that were producing antibody in response to the initial exposure have died and disappeared.

所以,这些记忆细胞,是人体免疫系统记忆抗原的一种方法,即使由浆细胞产生的抗体,在初次免疫应答中全部被消灭,记忆细胞仍然能迅速分化为抗体分泌细胞

耶鲁公开课 - 生物医学工程探索课程节选

This is true even if the decedent died earlier.

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As a consequence the phone keeps showing the last graphic or text sent to its second display even if its battery has died.

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Moreover, although Steve Jobs thought that he had cracked the TV problem before he died, even if he were still alive it is unlikely he would be able to repeat the coup he pulled off with the music industry.

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