in good preparations

例句：

1. 1.We need to be in good preparations for the exam.
   我们需要为考试做好准备。
2. 2. The team is well-prepared for the competition.
   这个团队为比赛做好了充分的准备。
3. 3. She was in good preparations for her speech.
   她为她的演讲做了充分的准备。