He discovered that the activation of a gene called Toll is crucial for switching on the initial immune response that allowed his flies to fight off infection.

他发现Toll基因的激活对启动能帮助果蝇抵御感染的固有免疫反应尤为关键。

youdao

The daily toll of casualties has dropped off sharply.

每日伤亡人数已经大大减少。 。

youdao

The death toll is expected to jump as contact is made with regions cut off by the disaster.

由于灾区通信中断，死亡人数有可能继续攀升。

youdao

He also sold off Indiana toll roads.

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Disease and hunger too have begun to take a toll, as the city is cut off from outside aid.

ECONOMIST: Crunch time | The

Infrastructure assets, like toll roads, airports, and power generation facilities also throw off income and appreciate during inflation, and are a top choice for larger investors.

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