He acted very cowardly at the crucial moment.

他在关键时刻表现得非常怯懦。

She felt she acted too cowardly at the crucial moment.

她觉得自己在关键时刻表现得太窝囊了。

The small forward made the winning shot at the crucial moment.

小前锋在关键时刻投中了制胜一球。

At the crucial moment, he chose to draw his sword and earned everyone's respect.

在关键时刻，他选择了亮剑，赢得了大家的尊重。

This strategy requires us to hide our capacities and bide our time to strike at the crucial moment.

这个策略要求我们韬光养晦，以便在关键时刻出击。

The crowd holds its breath, and, at the crucial moment, she misses the shot.

观众们屏住呼吸，但在这重要时刻，她失误了。