We tend to meet up for lunch once a week.我们往往每周共进一次午餐。He once told an interviewer that he didn't even like rock music.他曾告诉一位采访者，他甚至都不喜欢摇滚乐。He took off at once and headed back to the motel.他立刻离开，回到汽车旅馆。...
煮20分钟，直到液体体积减半。Boil for 20 minutes until the liquid has reduced by half.铁路旅费对儿童减半.Railway fares are reduced by half for children.他们把人员减半以减少支出.They retrenched by eliminating half the workers....