她外表看起来很自信，但实际上她很紧张。

Despite her ___outward confidence, she was actually very nervous.

建筑物的所有窗户都朝外开。

All the windows in the building open ___outward.

她保持着外表的平静，尽管内心非常紧张。

She maintained an ___outward calm despite being very nervous inside.