It is necessary initially to classify the headaches into certain types.

起初把头疼分成若干类别是有必要的。

《柯林斯英汉双解大词典》

There is not enough evidence to classify it as a disease.

没有足够的证据将它归类为一种疾病。

youdao

The effort to classify and categorise disorders of something as complex as the human mind.

对精神障碍的分类和归类作出的努力就像人类思维那样复杂。

youdao

There's the weird diets but hard to classify: Detox Diet, The Rave Diet, so if you're into raves you can go do that, and The Negative Calorie Diet, so these -the Negative Calorie Diet are ones that- where you eat food that have negative calories, so you consume it but it burns off more calories than it actually has.

这些是难以归类的减肥法,排毒法,锐舞减肥法,如果你对锐舞感兴趣,就可以照着做,还有负热量减肥法,负热量减肥法是指,吃具有负热量效应的食物,当你吃它的时候,消耗掉的热量比食物本身所含热量还多

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

And the major difference seems to be in how they classify their attorneys, their lawyers

主要的区别似乎是他们怎样对律师进行分类，

美国式对比英国式 - SpeakingMax英语口语达人

So let's think about how we can classify single and double and triple bonds, which is what we're really used to dealing with in terms of these sigma bonds and these pi bonds.

让我们想想怎么来分类单键双键,和三键，这在我们在考虑sigma键,和π键是很有用的。

麻省理工公开课 - 化学原理课程节选

Dr Levitt said that if doctors could use the programme to classify patients they would be able to offer better treatment.

BBC: Artifical brain to spot schizophrenia

The food fight over what do about obesity is heating up on both sides of the Atlantic as British official are mulling a ban on some television advertising aimed at children, and U.S. officials are considering whether to classify obesity as a disease as opposed to a condition, which would open the door to insurance coverage paying for treatment.

FORBES: Magazine Article

Its aim is not only to classify the microbial inhabitants of humans, but also to identify where they live and what strains people have in common.

ECONOMIST: The microbiome