馨香书屋：背1遍就想上考场四级单词（五十六）

竖起你的耳朵，背四级，学词汇，必克小编与你共进步！

author
The author's attitude towards the speaker's remarks is critical.

oxygen
Passengers with heart disease may experience chest pains as result of the reduced amount of oxygen flowing through their blood.

concrete
The existing 643 miles of concrete-and-steel border fence would be maintained but no new barriers would be built.

reproduce
The organization says that animals must have food, water, shelter, health care and the ability to reproduce.

introduce
To speed up the delivery of letters, the Post Office introduced automatic sorting.

See more information, you can visit us

英语口语测试  http://www.spiiker.com/daily/ 

在线学英语口语 http://www.spiiker.com/english-plaza.jsp