have nothing to say for oneself

例句：

1. 1.I have nothing to say for myself, so I won't argue with you.
   我为自己辩护，所以我不会和你争论。
2. 2. He has nothing to say for himself, but he knows what he did was wrong.
   他为自己辩护，但他知道自己做了什么是错误的。
3. 3. The defendant had nothing to say for himself, and the judge decided not to hear his defense.
   被告为自己辩护，法官决定不听取他的辩护。