She maintained her composure, though with difficulty, throughout the trial.

尽管十分困，她在这场还是保持冷静。

Those who can foresee difficulties on their way to success may keep calm when they really appear.

在走向成功的路途能够预见到困的人在困真正现的时候常常能保持冷静的态度。

Keep calm, whatever happens.

无论发生什么事都要保持冷静。