语法总结
even if 表让步
even if it is a bad one 强调即便质量差，人们也愿意去看免费演出。
相似句：
- I will go even if it rains.
- She smiled even if she felt nervous.
should have appeared
本该出现却没来，说明期待落空。
相似句：
- He should have arrived by now.
- They should have told us earlier.
as soon as 的瞬时反应
As soon as he opened his mouth... 说明口误和观众反应之间几乎没有间隔。
相似句：
- As soon as she saw him, she laughed.
- The dog ran as soon as the gate opened.