周末我们喜欢在公园里随便逛逛消磨时间。

On weekends we like to ___knock around in the park to pass the time.

别这样随便摔我的相机，它可不是让你随手乱丢的玩具。

Don't just ___knock around my camera like that – it's not a toy.

退休后，他喜欢在公园里闲逛打发时间。

After retirement, he enjoys ___knocking around in the park to pass the time.