1.
There are at least seven forms of the foot-and-mouth virus.
口蹄疫病毒至少有七种。
2.
a document in seven languages
用七种文字写成的文件
3.
They say that there are seven kinds of foods
他们说有七种食物是
4.
The heptathlon( Greek for“ seven tests”) is the women's multievent cormpetition.
七项全能（腊语中是“七种测试”）是女子的综合项目。
5.
and discovered seven new species of animals--all in South America.
发现了七种新的动物物种??全在南美洲。
6.
There will be seven euro notes and eight euro coins.
欧元总共有七种纸币和八种铸币。
7.
Provides seven optimization algorithms, three of which are global.
提供七种最优化算法,三种是全局优化.
8.
There are seven negative emotions and seven positive.
我们可将这些感 情分为七种消极和七种积极的情绪。
9.
Witness seven of the world's most diverse landscapes.
目睹世界上七种完全不同的自然景观。
10.
silks dyed in all colours of the rainbow
染成彩虹那样七种颜色的丝绸服装.
11.
This diplomat speaks seven languages with great smoothness.
这位外交官非常流畅地讲七种语言。
12.
Sunlight is composed of seven colors, so is our world full of different colors.
阳光包含七种色彩，世界也是异彩纷呈。
13.
a glyceryl ester of margaric acid.
十七烷酸的一种甘油酯。
14.
Any of several other plants, such as the horse chestnut.
七叶树植物如七叶树等几种其它植物中的一种
15.
Selection and Breeding of Zhongxing Ⅶ,a New Maize Variety,and its Culture Technology
玉米新品种种星七号选育及栽培技术
16.
The large, shiny brown seed of such a fruit.
七叶树果种子七叶树的坚果中巨大，亮褐色的种子
17.
The passage was cluttered up with all sorts of things.
过道里横七竖八地放着各种东西。
18.
"Any of about 75 species of tropical Birds (family Capitonidae) named for the Bristles at the Base of their stout, sharp Bill."
鴷形目须鴷科热带鸟类,约七十五种。