Topics: Famous Americans: Clara Barton; The California Gold Rush; problem versus issue versus concern; cordless versus wireless; brothers and sisters
Tags: English Café

Audio Index: 33:20

Words:
medical supplies
front lines
angel
in charge of
to advance
victim
to rush
word spread
to pan for gold
influx
saloon
problem
issue
concern
cordless
wireless
sister
brother

查看节目原文：
https://www.lizhi.fm/1835974/20330771607773702