抽签分组的英文：
group by lot

group是什么意思：
n. 组；团体；集团
v. 使聚集；将…分类，把…分组

grouping of data
资料归类

They are a group of wakes.
他们是一群守夜的人。

This group could be subdivided into two small groups.
这个组可以分成两个小组。

These translators are known as
这些译者就是传说中的“字幕组”。

The whole group will be rooting for him.
全队的人都为他打气喝彩。

lot是什么意思：
n. 很多，多数；全部；一批；一块地；签；抽签
v. 划分；抽签

to decide By lot
抽签决定

It was settled by lot.
这事是以抽签决定的。

It was settled by lotting.
这事是以抽签决定的。

They are a sorry lot.
他们是一批糟糕的家伙。

But it is a lot less clear than a lot of other objects.
但是和其它很多物体比起来,长城要模糊得多。