1. Stop messing around and focus on your work.
别再瞎弄了，专心做你的工作。

2. We were just messing around with the new camera, trying to figure out how it works.
我们只是随便玩玩新相机，试着弄清楚它是怎么工作的。

3. I don't have time to mess around with this project anymore.
我没有时间再浪费在这个项目上了。

4. Don't mess around with that dangerous equipment.
别随便碰那些危险的设备。

5. I'm tired of you always messing around and not taking things seriously.
我受够了你总是胡闹，从不认真对待事情。

6. The kids love to mess around in the backyard after school.
孩子们放学后喜欢在后院里玩耍。