Blackwater private forces guarded American officials and also trained Iraqis and Afghans for security work.

VOA: special.2009.06.19

But the guards, the "Giants," they were called, who guarded Frederick the Great were giants because they were six feet tall.

不过,腓特烈大帝的警卫团,只是因为身高6英尺,就被称为"巨人团"

耶鲁公开课 - 欧洲文明课程节选

He engirded him, watched over him, Guarded him as the pupil of his eye.

他就环绕他，看顾他，保护他，如同保护眼中的瞳人。

耶鲁公开课 - 旧约导论课程节选

But the area is guarded by the Secret Service and Chicago police.

VOA: special.2009.01.12

One is in the U.S.at the Centers for Disease Control, where there is a sample of variola, which is kept, you know, frozen on ice in a heavily guarded facility.

一个在美国的疾病控制中心,那有一支天花病毒的样本,冰冻后置于重重保护之下

耶鲁公开课 - 生物医学工程探索课程节选

For years,this had been a closely guarded family secret.

VOA: special.2009.08.23

For example,a horse with wings once guarded a temple.

VOA: special.2010.02.03

Southern gunboats guarded the harbor.

VOA: special.2009.07.30

Southern gunboats guarded the port.

VOA: special.2009.08.06

There is no large public ceremony expected, and it will be held as a private event on the heavily-guarded grounds of the presidential palace.

VOA: standard.2009.11.18

Last Monday,a suicide bomber struck a heavily guarded U.N.aid agency in Islamabad, killing five people.

VOA: standard.2009.10.12

and asked "What did they do?" In the northern city Mosul, a suicide bomber exploded a car near a checkpoint guarded by national and Kurdish forces.

VOA: standard.2010.05.10

Holbrooke's location in Pakistan personally coming here is a closely guarded secret, given the heightened security concerns following deadly terrorist attacks in Lahore and Peshawar,last week.

VOA: standard.2009.06.03

To prevent violence, some 1,500 Israeli police officers guarded the Gay Pride Parade, which meant about one police officer for every two participants in the event.

VOA: standard.2010.07.29