1. If you are too rough on your computer it will break sooner than you think.2. Kids are usually rough on their toys.3. Don't be so rough with my iPad; you might break it!4. Little Johnny is rude to his classmates at the kindergarten.5. (Dogs barking at guests) Owner: Sorry about my dogs. Hope they were not rough on you.
 rough on something rough with something這是正統的美語說法.
1. 如果你對電腦太粗魯的話它很快就會壞掉.2. 小朋友通常對玩具很粗魯.
My sister is bad-tmpered and would snap at anybody whenever she feels like it.