They prey on other invertebrates, which they capture with a unique proboscis.它们用独特的吻捕食其它无脊椎动物.an excretory organ of certain invertebrates.某些无脊椎动物的排泄器官Insects and worms are all invertebrates.昆虫和蠕虫都是无脊椎动物。In the earthworm ...
Insects and worms are all invertebrates.昆虫和蠕虫都是无脊椎动物。In the earthworm and many other invertebrates, these excretory structures are called nephridia.在蚯蚓和许多其它无脊椎动物中, 这些排泄结构称为肾管.But regulators with spine are still better th...
对我们来说是对的东西，对别人来说未必正确。What is right for us need not be right for others.人们总认为我是个傻瓜，想必他们是对的。People always think I'm a fool, and I dare say they're right.他并非在争辩中总是能赢，但他经常是对的。He didn't always win the arguments...
Spain has been one of Cuba's major trading partners.西班牙一直是古巴的主要贸易伙伴之一。In some perverse way the ill-matched partners do actually need each other.奇怪的是，那些不相配的伴侣实际上却彼此需要。When the aims of the partners begin to diverge, t...
Elastic cardo is used to reduce the cost for repair and make install easy.采用弹性轴节,安装、拆卸方便,维修费用低.Easy to install over either round or oval ducting.3易于安装的不是圆形或椭圆形的管道之上.We remove these rear controls and install them as canar...
物质和意识形态上的障碍在东欧已不复存在。Physical and ideological barriers had come down in Eastern Europe.我意识到我不得不克服语言障碍。I realized I had to surmount the language barrier.人质的获释可能会为发动战争扫清障碍。The hostage release could clear the decks for war....
List the positives and negatives of your choices.列出你的选择的好的和坏的方面.Electrical positives attract electrical negatives.正电荷吸引负电荷.So, I'm going to take some positives away from trip.所以, 我将会从这次比赛中带走一些积极的东西....