couldn't be better
当天还没过多久，我就钓到了一条白鱼，用来做鱼饵再好不过。
It wasn’t long before I caught a whitefish—perfect for bait.
那就再好不过啦
That would be even better!
— 攻壳机动队 (1995)
太棒了，真完美，再好不过了
That's fantastic—absolutely perfect. It couldn't be better.
— 窃听风暴 (2006)
这再好不过
That couldn’t be better.
— 落水狗 (1992)