1.
Some creatures find safety in numbers and travel in flocks, schools or herds.
有些动物群集而居，迁徙时成群结队以求安全。
2.
a group of caring Riverdale citizens gathered
一群热心公益的Riverdale居民聚集在一起
3.
As a class they lived apart.
他们作为一个阶级而离群索居。
4.
A group of people gathered for religious worship.
集会一群为宗教崇拜而集合起来的人
5.
Although it does gather in groups, the kangaroo is not a herd animal.
它们有时也结群，但总体而言，袋鼠不喜欢群居。
6.
the chant of the crowd at the rally.
集会群众单调而有节奏的喊叫
7.
The election campaign concluded with a mass meeting.
竞选活动以群众集会而告结束。
8.
He defines the local population or deme as the group of potentially interbreeding individuals at a given locality.
他说地区的种群或居群是某一地区具有潜在杂交能力的个体的集群。
9.
There are 37, 600 ethnic Chinese in Brunei at present, and most of them live in the cities, with the highest level of urbanization in this country.
文莱现有华人3.76万,集中在城镇居住,是文莱城市化水平最高的族群。
10.
She was also a very effective speaker at mass rallies.
而且，她还是群众集会上很有辩才的演说家。
11.
The police moved the crowd on before it could get big enough to threat law and order.
警察赶走了人群，以防聚集太多而滋生事端。
12.
They charged that I had threatened them with concentration camp.
他们群起而攻之，说我是在用集中营威胁他们。
13.
(of animals,etc)living in groups
（指动物等）群居的
14.
Police officers swarmed throughout Kazan, a city of one million,
一大群警官蜂拥而至，来到卡善这个有一百万居民的城镇，
15.
"Both are gregarious earless seals. The male has an inflatable, trunklike snout."
群居,两者均为无耳海豹。因其身躯硕大,雄兽鼻粗壮能膨胀,因而得名。
16.
Another possible reason of high differentiation ,could be from the reduced population size that induced the genetic drift.
另外，也可能是在其进化过程中，由于居群的缩小而发生了遗传漂变。
17.
A group of people united by common beliefs, attitudes, or interests and characteristically excluding outsiders; a clique.
内集团一群因共同的信仰、态度和兴趣而集合在一起并明显排斥外人的小集团；小集团
18.
A drove or herd, especially of swine.
群集畜群，尤指猪群