学校对你的孩子负有法律上的安全责任。The school is legally responsible for your child's safety.从法律上讲，货车司机一星期可工作82小时。A lorry driver can legally work eighty-two hours a week.从法律上讲，会有点问题。It could be a bit problematic, legally speaking....
爸爸打来电话让我去他办公室一趟。Daddy called and asked me to drop by his office.我正打算到邻近的图书馆跑一趟。I was going to pop up to the local library.如果需求量足够大，周六将再安排一趟航班。Another flight would be arranged on Saturday if sufficient demand arose....