哪位好人帮我用英语解释一下outsourcing这个词?

都是基本面积体积公式变形计算
1、三角形面积=底×高÷2,所以高=面积×2÷低=520×2÷26=40米
2、圆锥体积=底面积×高÷3=π×R²×高÷3,所以高=体积×3÷π÷R²=62.8×3÷3.14÷4=15立方分米=1.5米
3、梯形面积=（上底+下底）×高÷2,所以下底=（面积×2÷高）-上底=136×2÷9-7.4≈22.82米（是不是数据错了,面积如果是126,求出下底为20.6米）
4、（宽+长）×2=周长,所以长=周长/2-宽=36÷2-3.5=14.5分米

They said that they welcome a beautiful girl like me

1.{x!x=2k+1,k属于N}
2.{-3,3}
3.{x!x

1 比较明显的,sent 可能是 send 笔误 - 不定式肯定是 to send.
2 不太确定的是你所谓 my referees 指的是什么,如果确定是不止一个,相对后面的 form 似乎也该考虑保持一致用复数.

An Accident
One sunny afternoon,when I was merrily riding home,I heard "Help!Help!".I rode to the riverside and found a boy of about five in the river struggling.I jumped into the water,swam to the boy and dragged him to the river bank.the boy said he was trying to catch a fish near the river bank and carelessly fell into the water.I asked him where his home was and sent him home."Thank you very much!" the boy’s parents said,when I left his home.Though I got home late that afternoon,I was very happy.
Liu Xiang,a Shanghai native,was born on July 13,1983.His height is 188cm ,weight 74kg .Singing and the computer are his hobbies.In March,1999,he entered the Shanghai track and field team and one year later,he was admitted to the National Youth Team.Sun Haiping has been training him.In 2002,he won the gold modals in the men110m hurdles at the Asian Games and the Asian Championships.The next year,he took third in the 60m hurdles at the World Indoor Championships in England .At the Athens Olympic Games on August 27,2004.Liu won the men 110m hurdles final in 12.91 seconds,equaling the world record set and breaking the Olympic record.
写的不是很好,不要见笑哦!

翻译成什么
According to legend,in the village,carefree without me,particularly strange,for the village children division.Food reduction self-sufficient,not for the people.For this book,every morning with a big magnetic poppy in a tea bitter,with Danbagu a package,the pedestrian road,Chen Lu lining,to sit on the.Smoke tea in banks,see doers,will make the strong holds and language.Said the line,with the known.Thirsty,drink with tea,or instructions to smoke,will make the talk is.I smell a thing,go and hide.If more than twenty years,the party successfully,so such transcendence.