Explores the ways these two modal verbs are the same in some ways and different in other ways.

The English Toolbox

Must vs. Have to

Learn advanced vocabulary by listening to these 3 stories.  

Story 1 is about a marathon runner.
Story 2 is about helping new coworkers.
Story 3 is about starting life as a middle school student.

Word list: 
threat — 威胁
fatigue — 疲劳
span — 持续时间 / 跨度
infectious — 有感染力的 / 传染性的
derived — 源自于
cater to — 迎合 / 满足需求
initially — 起初
authentic — 真实的 / 正宗的
lead to — 导致
expectation — 期望
well into — 一直到…很晚
reply — 回复
doom — 毁灭 / 注定失败
irritable — 易怒的
such as — 例如
drained — 精疲力尽的
apathy — 冷漠
depleted — 耗尽的
inconsistent — 不一致的
pick up on — 察觉 / 理解
alarming — 令人担忧的
insomnia — 失眠
reviews — 评价 / 评论
landmark — 地标 / 里程碑
isolated — 孤立的 / 偏远的
