单词：
单词： 相关文章
保持华盛顿领空安全并非易事 Being the home of all three branches of the U.S. federal government makes Washington, D.C., the prime target for those who want to make their messages and ideas heard. Unfortunately, many of them choose to deli
VOA双语新闻 2015年4月
This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Used to be if spies wanted to eavesdrop, they planted a bug. These days, it's much easier. Because we all carry potential bugs in our pocketssmartphones. One t
Scientific American(十)月
AMERICAN MOSAIC - Are You Ready for Gyrotonics?By Dana Demange and Nancy Steinbach Broadcast: Friday, February 24, 2006 (MUSIC) HOST: Welcome to AMERICAN MOSAIC, in VOA Special English. (MUSIC) I'm Do
2006年慢速英语（二）月
The elephant is the largest of quadrupeds; 大象是四蹄动物当中最大的； his height is from eight to fourteen feet, and his length, from ten to fifteen feet. 高八到十四英尺，长十到十五英尺。 His form is that of a hog; his ey
美国语文第四册
Bringing a giraffe into the world is a tall order. A baby giraffe falls 10 feet from its mother' s womb and usually lands on its back. Within seconds it rolls over and tucks its legs under its body. From this position it considers the world for the f
英语美文
Come down, come down! yelled the seamen to Daggoo, 下来，下来！水手们都对大个儿高声叫嚷， but with one hand holding on to the heavy tackles, so that if the head should drop, he would still remain suspended; 他一只手抓住那只大
白鲸记