So the next time a dog lifts a leg to your car, don't get angry.

所以下次有狗对你的车抬起腿时，别生气。

All that could be seen of him was a very small black dot moving swiftly on the blue surface of the water, a little black dot which now and then lifted a leg or an arm in the air.

唯一可以在蓝色的海面上看见的是他的黑点，迅速地移动，并不时地把脚或手从水里伸到空中。