◆to mount guard or to mount guards派人守卫；安排看守
They've even mounted guard outside the main hotel in the capital.他们甚至派人在首都这家主要饭店外面站岗。
Police mounted round-the-clock guards on properties last night.警方昨晚对各处资产进行了通宵守卫。
to mount guard over sth派人守卫某物；安排看守某物
I half expected the American to pick up the spare machine pistol and mount guard over the operation.我有点盼望那个美国人能拿起闲着的冲锋枪保卫此次行动。