慢速英语:名师问答：smile和laugh的区别

音频下载[点击右键另存为]

同步字幕下载[点击右键另存为]

throat – n. the passageway leading to the back of the mouth

comedian – n. someone who makes other people laugh; funnyman

plural – adj. more than one in number

goodwill – n. friendly or helpful feelings

contagious – adj. able to be passed from one person or animal to another by touching