本文以隐藏的危险、原来如此为例讲解了托业考试听力常用短语，我们一起来阅读吧!
snake in the grass 隐藏的危险
snap out of it 突然改变情绪;振作起来
Snowed. (学生)被一个问题弄糊涂。
so that's it 原来如此
So what? 那又怎么样?
soft-soap 谄媚
somehow or other 莫名其妙地
sore spot 伤心事，旧疮疤
Sorry to have kept you waiting. 抱歉，让您久等了。
sounds just like 看样子就象
speak of the devil 说曹操曹操到
speak the same language 志同道合
spell out sth 讲清楚
spill the beans 露马脚