分别的英文：
part
distinguish
difference
separately

参考例句：

We parted the best friends.
我们在分别时是极好的朋友。

Toilets are marked 'Ladies'and 'Gentlemen'(or 'Gents').
厕所分别标明“女用”和“男用”。

A torus can be obtained from a rectangle by identifying opposite sides
环面可由矩形把其两对对边分别重叠起来而得到。

These peaks correspond to side-chain cleavage of the ethyl and propyl groups respectively.
这些峰分别相当于乙基和丙基的侧链开裂。

Subscripts Z and E are for zonal and eddy components respectively.
下角标Z和E分别表示纬向分量和旋涡分量。

Most are topped with a clue to their contents -- hibiscus or tea leaves, for example
大多数巧克力表面上都浇有诸如木槿或茶叶的图案，分别跟它们的口味相对应。

He lunged towards his messmates in turn a thick slice of bread, impaled on his knife
他用刀尖戳起厚厚的面包片，分别递到共餐者面前。

Of, relating to, or being a twin developed from two separately fertilized ova; dizygotic.
异卵双生的由两个分别受精的卵子生出的双胞胎的；由两个卵生出来的相象的人或物

I parted from (with) my friend yesterday
我昨日与朋友分别。

You'll have to register individually.
你们必须分别登记。

part是什么意思：
n. 部分；零件；角色
v. （使）分裂；分岔；（使）分开
adv. 部分地
adj. 部分的

sustain the part of
恰当地扮演

An aliquot part.
整除数，约数能整除的部分。

The parts interlock.
各部分相互扣住。

distinguish是什么意思：
v. 区别，辨别；看清；受人注目

It is their distinguishing characteristic.
这是他们与众不同的特征。

The coast was barely distinguishable in the mist.
在雾中很难看清海岸。

lacking distinguishing characteristics or features.
缺乏有区别性的特征。

difference是什么意思：
n. 不同，差别，差异；差数，差额；意见分歧；争执

Different strokes for different folks.
不同的人有不同的兴趣和爱好。

The difference is 8532.
差数为8532。

Different countries have different national conditions.
各国有各国的国情。