be successful at

• 在； 完成

be successful at的用法和样例：

例句

1. The party will be held in the officers' mess.
   聚会将在军官食堂举行。
2. She is going to be a timekeeper at the track meet.
   她将在田径比赛中担任计时员。
3. I think the work can be completed ahead of time.
   我认为这项工作能提前完成。
4. He gave orders that the job be done in three days.
   他指示三天内完成这项工作。