单词:plectognathi
单词:plectognathi 相关文章
Exploring the Long and Short of Hair Loss BARBARA KLEIN: This is SCIENCE IN THE NEWS in VOA Special English. Im Barbara Klein. STEVE EMBER: And Im Steve Ember. Today we talk about hair. We will tell what hair is, how it grows, and some of the main re
Most rice grows in wet environments, but too much water can be disastrous for rice crops. Plant biologist Pamela Ronald helped create a type of flood-resistant rice that is being introduced to India and Bangladesh. In Davis, California, we spoke wit
(a) 单元音 本音标符号的发音类似汉字啊的汉语发音,但嘴巴张开的幅度要更大。上下唇及上下齿全张,舌头自然平放,舌尖不接触下齿,也不要卷起或翘起,振动声带。发此音时,最好先照镜
We wish you a merry Christmas, we wish you a merry ChristmasHave you heard that song? Yup! It's Christmas time! This Christmas, I stayed with my host family1. It was an amazing experience to see how a typical American family would celebrate the bigge
spacious adj.广大的, 大规模的 specialist n.专门医师, 专家 spectrum n.光, 光谱, 型谱,频谱 spicy adj.加香料的, 出产香料的, 辛辣的,有风味的 spine n.脊骨, 书脊, 地面