A: He's a real jerk. I can't stand him.
B: Never say that again, for heaven's sake! He means well.
A: Ha, ha, ha. You don't know him enough.

A: 他真是个笨蛋。我受不了他。
B: 不要再说这种话，看在老天的份上。他是善意的。
A: 哈，哈，哈。你还不够了解他。

重点解说：

★ jerk一词用于骂人为「笨蛋，蠢材」

★ can't stand「无法忍受(=can't bear)」

★ He means well.「他是善意的。」如: He means no harm.「他并无恶意。」