Add salt to the wound

火上浇油

【说明】若将salt撒在你的wound上，是什么滋味？更为直接的说法：Pour oil on fire.

【例句】Jimmy is already very upset now he knows that he has failed the test.You should not add salt to the wound by teasing him. 吉米得知自己测试没及格，已经很沮丧了，你不应该火上浇油，还去取笑他。

【补充】与上述成语有关的还有 Pour oil on troubled waters即把油倒在水里，比喻“平息纷争”eg:If the manager had not poured oil on troubled waters,the angry customer might have sued the salesgirl.幸亏经理平息了这场纷争，否则那位愤怒的顾客可能会控告女售货员呢。