1. Then she looked at herself in the mirror.

接着她照了照镜子。

look at oneself in the mirror的意思为“照镜子”，例如：

The pretty girl quickly brought out the little miiror out of her bag and looked at herself in the mirror for a while.

那个漂亮的女孩迅速从包里拿出镜子，仔细照了下镜子。

2. She stared angrily at me for a long time.

她愤怒地瞪了我好久。

stare的意思为“瞪眼看，凝视”，例如：

It's rude to stare at others.

瞪着别人是不礼貌的行为。

The teacher was staring at the children playing outside the window and a smile sppeared on her face.

老师凝视着窗外玩耍的儿童，脸上露出一丝微笑。

3. I must have fainted, and I think she left my room after that.

我一定是晕倒了，她就在那个时候离开了。

faint的意思为“昏厥，晕倒”，例如：

Suddenly, the old lady fainted down to the floor.

突然，老妇人昏倒在了地上。