Some places like Australia's Great Barrier Reef and Montana's Glacier National Park are threatened by the effects of climate change.

VOA: special.2009.04.22

A state of war can include, in other words, " what we might call a "cold war," two hostile sides looking at each other across a barrier of some type, not clear or not certain what the other will do.

换句话说，战争状态包括，我们所说的“冷战“,敌对双方透过某种屏障,对对方虎视眈眈，却不知道对方会干什么。

耶鲁公开课 - 政治哲学导论课程节选

And kids were having a hard time in school just because of the language barrier.

在校的儿童们遇到的困难主要来自于语言沟通障碍。

帮助多文化的家庭 - SpeakingMax英语口语达人

But with threats, a language barrier and fear of the legal system, victims are often unwilling or unable to seek help.

VOA: special.2010.06.14

This was the special value that said to the computer string stops here and because you have that barrier given to you at the end of every string, just the most efficient way you can pass strings around is just by passing the address of their very first bytes, the location in RAM.

这是一个特殊的值，表示的是,字符串在这里结束，因为在每个字符串的末尾,都有那个关卡，这是一个最有效率的方式，你可以通过传递,字符串的第一个字节的地址来传递一个字符串，地址是在RAM中的。

哈佛公开课 - 计算机科学课程节选

And,he was proud of being the first African-American to break the color barrier in a major opera house.

VOA: special.2010.03.07

We talked about this a little bit in section last week, when you eat vegetables or meat, you're eating a lot of DNA but that doesn't enter the cells of your body because of the barrier properties of cell membranes.

这个我们上周讨论会讲过一些,我们在吃蔬菜或者肉类时,摄入了大量DNA,它们之所以不会进入你的体细胞,就是由于细胞膜的这种屏障作用

耶鲁公开课 - 生物医学工程探索课程节选

He is the man who broke a major color barrier for black singers of classical music.

VOA: special.2010.03.07

At one time, the president who had retreated and retreated until he was pressed against the wall, could only be secured by a number of gentlemen forming round him and making a kind of barrier of their own bodies.

VOA: special.2009.01.19

But in the absence of any service, we have found that it is able to remove that barrier in some cases."

VOA: standard.2010.06.14

But with threats, a language barrier and fear of the legal system, victims often do not or are unable to seek help.

VOA: standard.2010.05.24

a 15-kilometer-wide barrier of trees that would cross 11 countries and halt the spread of the Sahara.

VOA: standard.2010.04.01

That barrier across the center of Europe was built and maintained with Kremlin approval.

VOA: standard.2009.12.25

Several miles off the Eastern Louisiana coast these barrier islands are all that stand between treasured wetland habitats and the giant oil slick adrift in the Gulf of Mexico.

VOA: standard.2010.05.09

The fish that,for one reason or another, that found their way past the barrier, we suppressed them and try to take them out of the system to keep them from establishing in Lake Michigan."

VOA: standard.2010.07.20

"Our aspect of the project is to harvest the Asian Carp before they get to the fish barrier to reduce the numbers so there is less chance of any Asian Carp getting past the barrier."

VOA: standard.2010.07.19

This part of the Illinois River near Morris is several miles southwest of the electronic fish barrier, a critical point along the Illinois waterway system meant to stop the Asian Carp from reaching Lake Michigan.

VOA: standard.2010.07.19

"And their struggle and barrier is having an adequate health workforce and facilities for the kind of high-tech things that happen to mothers that are at risk " In contrast,Boufford says developed nations have excellent medical technology.

VOA: standard.2010.06.23