If too active, it can cause the rampant reproduction seen in cancer cells.

如果端粒酶过于活跃，就会导致类似癌细胞的繁殖过快。

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Ted hated the idea of lying on a beach; Mary hated the idea of being too active.

特德不愿意躺在沙滩上晒太阳；而玛丽不想运动量太大。

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GABA, he says, is like the marshal that prevents the cells from being too active.

他说GABA行使信号整合作用，避免细胞过度活化。

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But counterfeit drugs may contain too much, too little or none of the active ingredients of the real thing.

VOA: special.2010.02.22

As a result, some genes become too active and others fail to work at all.

ECONOMIST: Cloning around

"I think there is a general hesitancy given where we are as a team to become too active too early in free agency, " Alderson said.

WSJ: When Will the Mets Become Buyers?

The fees in active funds are too high, the talent too scarce, and competition too intense for active managers to outperform indexing in the long-term.

FORBES: 5 Lies About Index Funds