excitation conduction

例句：

1. 1. The news of the newinvention excited everyone in the room.
   这个新发明的消息让房间里的每个人都感到兴奋。
2. 2.His enthusiasm for learning English was infectious.
   他对学习英语的热情是传染的。
3. 3. The excitementof the upcoming event had everyone buzzingwith anticipation.
   即将到来的事件的兴奋让每个人都充满期待。