up to scratch

汉语翻译

例句：

1. A pianist has to practice every day to keep up to scratch.
   钢琴手要天天练习才能保持高水平。
2. We'll have to bring the house up to scratch before we sell it.
   我们得把这所房子维修一下再出售。
3. Is her schoolwork up to scratch?
   她的功课行吗?