她虽然非常害怕，但表面上还是显得很镇静。
Though badly frightened, she appeared outwardly calm.
这些大木材，表面上看被烟熏得黑黑的，有些地方被虫蛀了，烂了，但内芯却是十分坚硬的。
The great timbers, darkened now by smoke, wormed in places, looking rotten on the surface, but hard in the core, hard as iron.
她表面上若无其事反而使他更加紧张。
Her apparent indifference made him even more nervous.
