Welcome to the unit
1. Everyone agrees that laughter is good for you. (page 1) 每个人都认为笑对身体有好处。
laughter
n. [U] the act or sound of laughing 笑；笑声；笑的样子
She roared with laughter (= laughed very loudly).
As we approached the hall we could hear the sound of laughter.
常用搭配：burst into laughter 爆发出一阵笑声
roar with laughter 放声大笑
