1、concern

忧虑;担心

The group has expressed concern about reports of political violence in Africa.

该团体对有关非洲政治暴力的报道表示关切。

The move follows growing public concern over the spread of the disease.

针对公众对该疾病的不断蔓延日益担忧，从而出台了这一举措。

使担忧;使心烦

The growing number of people seeking refuge in Thailand is beginning to concern Western aid agencies.

到泰国寻求庇护的人日益增多，这开始引起了西方援助机构的不安。

It concerned her that Bess was developing a crush on Max.

贝丝迷上了马克斯，这让她很担心。

令人担忧的事实(或情况)

His concern was that people would know that he was responsible.

他担心大家会知道是他的责任。

Unemployment was the electorate's main concern.

选民关心的主要是失业问题。

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。