9. Train was late because of the heavy snow.
火车因为大雪而晚点。
还能这样说：
The heavy snow caused the train being late.
The heavy snow led to the train arriving late.
谚语：
A light purse is a heavy curse.
为人无钱处处难。
10. The late train brought lots of trouble to the passengers.
火车晚点给乘客带来了很多麻烦。
还能这样说：
It was troublesome for passengers that the train is late.
The train being late caused much trouble for the passengers.
应用解析：
I'll trouble you to 劳驾你，请你……；
make trouble 闹事，捣乱
11. The bus was half an hour late because of the accident.
公交车因为交通事故晚了半个小时。
还能这样说：
The accident delayed the bus for half an hour.
The bus arrived half an hour late for the accident.
12. The late train ruined my business activities.
晚点的火车毁了我的商务活动。
还能这样说：
The overdue train spoiled my business activities.
My business activities were cancelled because the train was behind time.