They may feel tired and though outwardly calm, can be irritable.

他们或许会感到疲惫，虽然外表看似没事，但可能很容易发火。

Outwardly this looked like the beginning of a terrific programme but the stage was actually set for a major disaster.

表面上，这似乎是开启了一个极棒的项目，但实际上却是为一场大的灾难埋下了伏笔。