The disadvantage with carrying out interviews is that it may take a long time.
走访用户的不利之处是它需要很长的时间。
He passed his exams, and even better, when he left university he had earned enough money to start his own business, offering guide services to tourists.
他考试过关了,更惬意的是,他大学毕业时,所赚的钱足够他开始经营自己的行业--为游客提供导游服务。
In fact, I was a bit frightened and didn't know what we should do.