好说歹说

好说歹说:

Literally means:

try every possible way to persuade

Actually means:

歹, bad, used with hao to mean both the positive and the negative sides of a thing.

The phrase means reasoning by presenting both advantages and disadvantages; or to request or persuade somebody to do something again and again.

歹，坏，用来跟“好”一起表示正反两方面。好说歹说，指从正反两方面说明各种理由，向对方反复提出请求或劝告。