When the climbers looked back, they saw that two uninvited visitors had joined on.

登山者回头望, 看见两个不请游客在跟起爬山。

I rang the water company to query my bill.

我给公司打电话对账单上费提出疑问。

They were projecting a new waterworks.

在设计个新厂。

I beg your pardon for intruding.

请原谅我不请。

He came unasked.

不请。

Water supply corporations is feazed by redwater even blackwater, users rebel for that, they even have suspicious with the watersupply corporations.

红、黑现象经常困扰各城市供企业，对此用户十分反感，甚至对信誉产生了质疑。

Its just a short form letter and appears to have been signed with the autopen of the day, but I hugged that letter with all the glee of a six-year-old boy getting his first train set from Santa Claus.

这只是封短通函，看上去是用那时笔签名，但我兴奋地把信抱在胸前，就像个六岁小孩刚从圣诞老人那里得到了套火车玩具模型。