keep at的意思

汉语翻译

例句：

1. Keep at him till he agrees.缠住他直到他同意为止。
2. Keep at it!别松劲！
3. If you keep at your work, you will finish it soon.如果你坚持干下去，很快就会完成的。
4. Keep at it.There is only a little more.坚持下去，只剩一点儿了。