1. 中不溜,不好不坏：Do you hear? 你听明白了吗? | Fair to middling 中不溜,不好不坏. | Have at it 开始做吧,开始吃吧.

2. 还行,凑合吧：What ale you up to?你在忙什么呢? | Fair to middling.还行,凑合吧. | It doesn't matter.没关系,不要紧.

3. 中等水平的：13. fair shake 公平待遇,均等机会 | 14. fair to middling 中等水平的 | 15. fair weather friend 只会同安乐却不能共患难的人

4. 还行,马马虎虎啦：3.What's up? 出什么事情了? | 4.Fair to middling. 还行,马马虎虎啦. | 5.What's with you? 你怎么啦?

1. about average
    acceptable

    e.g. more than adequate as a secretary

    Synonym: adequatepassabletolerable