1、convert
(使)改变;更改;(使)转变
The signal will be converted into digital code.
信号会被转变为数字代码。
naturally occurring substances which the body can convert into vitamins.
自然产生的能被身体转化成维生素的物质
改造，改建(房屋等)
By converting the loft, they were able to have two extra bedrooms.
把阁楼改造一下，他们就可以多出两间卧室。
the entrepreneur who wants to convert County Hall into an hotel.
想把市政厅改建成旅馆的企业家
改造，改装(车辆或设备)
Save money by converting your car to unleaded.
将车改装一下，使用无铅汽油，这样可以省钱。
The programme to convert every gas burner in Britain took 10 years.
完成对英国所有煤气灶的改造花了10年时间。
2、stretch
延伸;绵延
The procession stretched for several miles.
游行队伍长达数英里。
He had burns that stretched from his neck to his hips.
他从脖子到臀部均被烧伤。
一片;一泓;一段
It's a very dangerous stretch of road.
这是一段非常危险的路。
This stretch of Lost River was broader and deeper.
洛斯特里弗的这片水域又宽又深。
伸展;舒展
He yawned and stretched.
他打了个呵欠，伸了伸懒腰。
Try stretching your legs and pulling your toes upwards.
试着双腿伸直并且向上拉伸脚趾。