BBC 6 Minute English 当

®=解释

#=例句

词组

lead to sth ...导致...

#For some people, exercise can in fact lead to a migraine.

irritability 易怒

merge =Join together 合并

Social media  社交媒体

portmanteau words 合成词，合并词

smarty pants.

®a person who talks and behaves like someone who knows everything

#Go ahead, smarty-pants, tell us about your grade point average.

#Don't be such a smarty-pants. [=know-it-all

实用句子

You know what i'm talking about?