When he tested an early vaccine on himself, some described the act as foolhardy.

当他在自己身上试验还处于初级阶段的疫苗时，有些人说他的行为是莽撞的。

《柯林斯英汉双解大词典》

Now investigators think they know at least some of the molecules that act as morphogenetic determinants in early development.

现在研究人员认为他们至少知道了一些在早期发育中对形态起决定作用的分子。

youdao

Q: What role did the World Health Organization (WHO) play in the early development of ACT?

问：世界卫生组织在早期开发青蒿素类复方药上发挥了何种作用？

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During the early weeks of eighteen ninety-eight, President McKinley waited for Spain to act on its promises to Cuba.

VOA: special.2010.07.08

Economic incentives and early-warning systems say donors should act early.

ECONOMIST: Did the world react too late to signs of famine in Somalia?

By and large, independent central banks are likelier than politicians to act early against inflation.

ECONOMIST: Singing in the rain

So labor advocates are looking to put more teeth in the federal WARN Act early in the next Congress.

FORBES: Layoffs And Lawsuits