I took a potshot at the rabbit, but missed.

我胡乱打了一枪，但是没有射中。

Somebody took a potshot at him as he drove past.

他开车经过时候，有人他乱开了一枪。

The newspapers took potshots at his attempts to get into the movie business.

报界对他进军电影界努力胡乱加以批驳。