It was once thought that lead could be transmuted into gold.

有人曾经认为铅可以变成黄金。

《牛津词典》

Anyone who falls into a lead can be frozen to death in a few minutes.

任何掉入铅中的人都可能在几分钟内被冻死。

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The channels lead the water into large tanks where it can be stored.

这些渠道把水引到大水箱里储存起来。

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Ok, today we're going to continue our discussion of cellular principles and lead into cell culture technology which will be the subject of the section meeting this afternoon, so just to remind you about the sections.

今天我们继续讨论细胞学原理,之后再引申到细胞培养技术,这也是我们今天下午分组讨论会的主题,顺便提醒一句,下午有组会

耶鲁公开课 - 生物医学工程探索课程节选

Through a seemingly elegant design, lead can be transformed into gold, or, at least, something of greater value.

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This means that 75 percent of the Afghan people live in areas where Afghan forces will be moving into the lead.

WHITEHOUSE: President Obama Speaks at ISAF Meeting on Afghanistan

Aside from being ineffective - friends cannot read private messages - it encourages an erosion of trust and could lead children to be tempted into using a "secret" account, away from prying eyes.

BBC: Child safety measures to protect against internet threats