The Ukrainian Interior Minister, Arsen Avakov, said troops had recaptured a security services building and a television tower.

乌克兰内政部长阿卡科夫说军队已夺回一座安全机构大楼和电视塔。

The theme for the 2018 three-day event is building security partnerships based on equality, mutual trust and win-win cooperation.

2018年3天峰会的主题是建立平等互信、合作共赢的安全伙伴关系。

Next, this is a time to start building financial security so think about how much you'd like to make.

接下来，就是开始建立自身财产安全规划的时候了，所以要想想看，你打算赚多少钱。

Not even building security has clearance.

大楼保安也进不去。

Obviously, we can't change our building's security, but we can make one small difference.

显然， 我们无法改变建筑物的安全性，但我们可以做出一点改变。

I'm reporting it to building security.

我要报告给大楼保安人员。

Some building security companies will take advantage of this, using devices that emit a high-pitched noise that most people over the age of 25 can’t hear.

一些建筑安全公司会利用这一点，使用发出大多数 25 岁以上的人听不到的高音调噪音的设备。