A：I am fed up with Jack. He is so weak in dealing with other people and always eats dirt.
我受不了Jach了，他交际太差，总是忍气吞声。
B：So he is. But, why not try to help him to become stronger?
他的确是这样。但是你为何不帮助他变得强壮点呢?
A：How do you know that I didn’t try? I just couldn’t manage it.
你怎么知道我没帮，我只是没帮成功而已。