3句中译英，别把有道词典答案贴上来，办正事大家不要捣乱，谢谢合作。正解补加20分

泡面吃完了如果没人翻就帮你。。。

1.there is a network problem which has being maintained. you can come later or tomorrow.

2.it is unstable for logging on Yahoo now, please try later

3.you just need to press the "ENTER" key

4.maybe you need to chek your E-mail's capacity or the filling-in format.

照直翻译的哈，不过一般来说网络都是说连接CONNECTION出现问题，维修用升级UPGRADE代替，而且不说登陆不稳定，也是说连接不稳定，供参考吧。。