kind,sort,type,variety表示"种类"时有何区别?

kind n.（名词）
A group of individuals linked by traits held in common.
同种,同类：因具有共同的特性而联系在一起的个体的集合
A particular variety; a sort:
特定的种类；类别：
What kind of soap do you like best?See Synonyms at type
你最喜欢哪一种肥皂?参见 type
sort n.种类,类别
type n.（名词）
A number of people or things having in common traits or characteristics that distinguish them as a group or class.
类型：一定数量的人或事物,具有把他们与一个集体或种类区分开的共同特征或特点
The general character or structure held in common by a number of people or things considered as a group or class.
标志,特质：作为一个集体或种类的人或事物共同拥有的总体特征或结构
A person or thing having the features of a group or class.
典型：拥有一个集体或种类特征的人或事物
variety n.
The quality or condition of being various or varied; diversity.
多样化：多种多样或变化多端的性质或状况；多样性
A number or collection of varied things,especially of a particular group; an assortment:
（多种东西的）组和：许多不同东西或不同东西的集合,尤其是一个特殊群体的；一套物品：
brought home a variety of snacks.
带回家许多种零食
A group that is distinguished from other groups by a specific characteristic or set of characteristics.
种类：由于一种具体的特性或一组特性而区别于其它种群的一群