She stood up and began to pace to and fro.她站起身，开始来回踱步。The boat was rocking gently to and fro in the water.小船在水中轻轻地来回摇荡。They travel to and fro between London and Paris.他们奔走于伦敦和巴黎之间....
绳子解不开了，只能剪断。The rope could not be disentangled and had to be cut.她拿了一把剪刀把绳剪断.She took a pair of scissors and cut the string.请剪断这根绳子.Please cut this piece of string....
Two guards with sidearms patrolled the wall.两名配枪警卫在城墙上巡逻。Soldiers patrolled the castle ramparts.士兵们在城堡城墙上巡逻.Troops patrolled the border day and night.军队日夜在边境地区巡逻。...a barbed-wire fence patrolled by armed guards...有武装警卫巡逻...