英语翻译1、游客被要求要准时 有一些到达滑雪胜地（require）2、老师经常鼓励学生把知识和实践结合起来（combine）3、每四年一次,来自世界各个地方的运动员参加奥运会（compete）4、尽管有一些困难,他还是设法提前完成了任务（despite）

1 The tourists are required to arrive at ski resort on time.
2 the teacher often encourages the students to combine the knowledge and practice.
3 every four years,the athletes from all over the world compete in the Olympic Games.
4 despite some difficulties,he managed to fulfill the task in advance.