Security people were nosing around, and Cortez joined them.是什么意思？

Security people were nosing around, and Cortez joined them.

保安人员正在四下搜寻，科尔特斯也加入到他们当中。

security

n. 安全，保证，担保，保护，防护，有价证券；adj. 安全的，保安的，保密的；

例句
You've illegally accessed and misused confidential security files.
你已经非法访问并盗用了机密的安全文件。

people

n. 人，人类，居民，人民，种族；vt. 居住于，布满，使住满人，在…殖民，把动物放养在；

例句
Most people have very little difficulty in seeing why a Van Gogh is a work of genius.
多数人不难理解为什么凡·高的作品是天才之作。

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

例句
Shops, houses, and vehicles were set ablaze.
店铺、房子和车辆全都陷于火海。

nosing

n. 楼梯每一级的前缘，保护此处的金属板，机头；

例句
Ben drove past them, nosing his car into the garage.
本小心翼翼地把车开进车库时从他们身边经过。

around

adv. 大约，旋转，到处，四处，在周围；prep. 围绕，在附近，前后，左右，在…周围；

例句
He has never put an arm around his wife to accommodate photographers...
他从未为了迎合摄影师而搂住妻子。

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

joined

v. 连接( join的过去式和过去分词 )，联结，加入，参加；

例句
Podulski had joined the U.S. Navy as an aviator, adopting a new country and a new profession.
波度尔斯基加入美国海军当上了飞行员，不仅改了国籍还换了行当。

them

pron. 他们，她们，它们；

例句
I take care of them to the best of my abilities...
我尽我所能地照顾他们。