A hero is known in the time of misfortune.是什么意思

用法例句

For whatever manner or mode to apply,we should consider three factors: situation,human nature and theory.

在摸索过程中,不管选择哪一种管理模式与手段,都必须考虑三个因素,即时势、人性与理论这三个科学管理的支点,才能缩短距离,开拓创新,实现跨越式发展。

The instantaneous potential energy was defined through the operation of variational integrals.

通过对位移、功、势能和虚位移、虚功等概念的阐述,用变积运算定义了瞬时势能,然后用变积法从达朗贝尔-拉格朗日原理导出位移变分原理。

Significances allocating:historical contexts and the shifts of "May 4th" discourse;

意义的赋予:时势转移与“五四”话语的演变