癒颌鱼目, 癒颌类;固颌类
词型变化:名词复数形式 : plectognathis

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

发表于:2019-01-12 / 阅读(41) / 评论(0) 分类 2011年VOA慢速英语(四)月

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

发表于:2019-01-13 / 阅读(47) / 评论(0) 分类 VOA标准英语2009年(三月)

(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

发表于:2019-01-14 / 阅读(32) / 评论(0) 分类 赖世雄美语从头学(美语音标)

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

发表于:2019-02-09 / 阅读(66) / 评论(0) 分类 英美文化

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

发表于:2019-02-13 / 阅读(35) / 评论(0) 分类 英语作文

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

发表于:2019-02-25 / 阅读(120) / 评论(0) 分类 考研英语