留学群托福频道为大家带来托福听力词汇：信号词，本文汇总整理了托福听力历年真题中高频出现的听力词汇，托福听力词汇是托福考生备考必须掌握的重难点。更多内容尽请关注留学群托福频道! 信号词 : 时间顺序 Time-Sequence:first, later, next, finally, before, after, now, previously, last, then, when, immediately, formerly, subsequently, presently, ini...