建议箱

例句：

1. 1. The teacher suggested that we should study together in the morning.
   老师建议我们早上一起学习。
2. 2. She put her suggestions into action immediately after class.
   她课后立刻将她的建议付诸行动。
3. 3. The manager suggested a new policy to improve efficiency.
   经理提出了一个新的政策来提高效率。