My train leaves in a couple hours, so I’ve got to watch the time.
我的火车还有几个小时就要开了，所以我得注意时间。
Have a bad temper:
脾气差
例句：
I knew you have a bad temper.
早就知道你脾气不好了。
Lose one’s temper:
脾气暴躁
例句：
He is so laid-back. I’ve never seen him lose his temper.
他总是不慌不忙地。我从没见他发过脾气。
Have a short fuse:
容易发怒
例句：
I have a very short fuse and a violent temper.
我容易发怒，脾气暴躁。