1、
The President's unescorted vehicle was ambushed just outside the capital.
刚出首都，总统无人护卫的汽车就遭到了伏击。
《柯林斯高阶英汉双解学习词典》
2、
3、
4、
They advise against foreign delegates wandering unescorted in various parts of town.
他们建议外国代表在没人陪同时不要在城镇四处游逛。
《柯林斯高阶英汉双解学习词典》
