They can again own investment companies that underwrite securities.是什么意思？

They can again own investment companies that underwrite securities.

银行又允许投资公司认购包销证券.

they

pron. 他/她/它们，人们，大家，政府，当局，她们；

例句
The storms had abated by the time they rounded Cape Horn.
他们绕过合恩角时，暴风雨已经减弱。

can

aux. 能够，可以，有机会；n. 金属罐，一听，金属容器；vt. 将…装罐保存，炒…鱿

例句
When I listen to her play I can hear a new Nigel Kennedy.
从她的演奏中我听出了新一代的奈杰尔·肯尼迪。

again

adv. 再一次，再说，此外，不过；

例句
It's easier to take a taxi. But then again you can't always get one...
打出租车要容易些，但也并不总是能打到的。

own

n. 自己的事物，自己人；vt. 拥有，承认；vi. 承认；adj. 自己的，特有的；

例句
Their permissiveness toward their children reflects the wild abandon of their own lives.
他们对孩子的放任折射出他们自身生活的放浪形骸。

investment

n. 投资，投资额，封锁，（时间、精力的）投入，值得买的东西；

例句
President Mwinyi said his country would also like to attract investment from private companies...
姆维尼总统说他的国家同样愿意吸收来自私营公司的投资。

companies

n. 公司( company的名词复数 )，[军事]连，连队，客人；

例句
The workforce have recently been calling for their working hours to be reduced. Many companies have accordingly switched to a five-day week.
工人们最近一直在呼吁缩短工作时间。许多公司于是转成了一周五天工作制。

that

det. 那个，那；pron. 那个，那；conj. 多么，如此…以至，用于某些动词、形容词和名词后，引出各种从句；adv. 不那么，那样；

例句
...expensive make-up that we saw being advertised by a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品

underwrite

vt. 签名承认（担保），签名接受（保险），给…保险，认购，在…下面写；vi. 经营保险业；

例句
National banks can package their own mortgages and underwrite them as securities.
国家银行能够合并自己的抵押贷款并以证券形式包销。

securities

n. 有价证券，安全( security的名词复数 )，保证，担保，有价证券；

例句
The Securities Commission chastised the firm but imposed no fine...
证券委员会严厉批评了那家公司，不过没有处以罚款。