1. The whole room erupted in guffaws when the comedian told his hilarious joke.
（当喜剧演员讲了一个很搞笑的笑话时，整个房间都爆发出大笑声。）

2. His guffaw echoed through the empty hallway, making everyone turn to see what the commotion was about.
（他的大笑声在空荡的走廊里回荡，让每个人都转过头来看究竟发生了什么骚动。）