One must have a correct estimate of oneself.

一个人必须对自己有正确的估计。

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One must consider the matter well before deciding.

人必须深思熟虑后再作决定。

youdao

One must be duly self-disciplined to adhere to it.

人要适当自律才能坚持它。

youdao

As one of the great nations, Lodge said,the United States must not fall out of this line of march.

VOA: special.2010.07.08

At the end of the day, better that five should live even if one must die.

最终结论：，牺牲一人保全五人，是更好的选择。

耶鲁公开课 - 公正课程节选

So to be pure, one must separate ones self from sources of impurity.

想要变得纯洁，我们必须远离不纯洁的来源。

耶鲁公开课 - 旧约导论课程节选

Others feel one must believe in the practice for it to have any power over them.

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To understand this disparity, one must keep in mind that these indicators show a time lag.

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To help consumers retain some semblance of privacy, one must explore the role of regulatory oversight.

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