语法总结
现在完成进行时
I have been working... / I have been trying... 都强调动作从过去开始一直持续到现在，很适合写“忙了一整个上午”这种过程感。
相似句：
- She has been cleaning the room all morning.
- We have been looking for the missing key for hours.
To make matters worse
To make matters worse 是整句插入表达，表示“更糟的是”，常用来在叙事里进一步加码问题。
相似句：
- To make matters worse, it began to rain.
- To make matters worse, we had forgotten the tickets.
I have ever seen 的最高级语气
This is the prettiest carpet I have ever seen. 用最高级加现在完成时，把“我至今见过的最……”这种主观评价说得很足。
相似句：
- It was the funniest joke I had ever heard.
- This is the most crowded room I have ever entered.