1.收到来自…..…的信息 receive a message from...
2.寻求帮助 ask for help
3.报警 call the police
4.立刻 at once
5.with guns in their hands 他们手里拿着枪
6.push into_推进
7.stop sb from doing sth 阻止某人做某事
8.try to do sth尽力做某事

1.当他们到达那儿时，他们看见三个身着警服的男人手持着枪从大厦出来。
When they arrived there, they saw_ three men in policeuniforms  coming out of the building with guns in their hands.

2.他们向那三个男人跑去，并试图阻止他们离开，但他们被推进了一辆小型公共汽车。
They ran towards the three men and were pushed into，butthey tried to stop them from leaving a minibus.

3.贾斯廷和卢克试图用小刀打开小型公共汽车的后门。
Justin and Luke tried to open the back door of the minibus with a knife