U-6：up to the hilt 彻底
A:I'd back him up to the hilt any day.
A:我会一直支持他的。
B:Why are so kind to him?
B：为什么你对他那么好？
A:He's my brother.
A:他是我哥哥。
B:So that's how it is! Now he is in trouble, but I believe he will rise to his own feet again.
B：原来如此。他现在是有点麻烦，但我相信他一定会重新站起来的。
A:Thanks for your belief.
A:谢谢你的信任。
