ratfish信息详情
n.银鲛，兔银鲛（等于rabbitfish）
corroboration define───确证定义
stratified random sampling───分层任意抽样，分层随机抽样，分层随机取土样
mercurous chlorate───氯酸亚汞
gratifications paradigm───满足范式
moderation is for cowards───节制是给懦夫的
preparatory subject it───预备科目
aerated spot───充气点
cero ratings───零分
operating earnings───[贸易]营业收益
concentration ratio───集中度；浓度比率
I suspected that ratfish also possess these organs, but to confirm this conjecture, I needed to catch a ratfish unharmed and keep it alive long enough for experimentation.───我怀疑鼠鱼也有这些器官，但为了验证我的假设，我必须捕捉到一条活鱼，好好养到做完实验为止。
I soon realized that the ratfish 's tendency to swim against the flow might help to answer my questions.───不久后我就知道，鼠鱼逆水而游的习性或许有助于回答我想问的问题。
This feature and its big eyes made it resemble a bunny or a rat—which is why it is commonly called a rabbitfish or ratfish .