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https://online2.tingclass.net/lesson/shi0529/0008/8435/EC505.mp3

https://image.tingclass.net/statics/js/2012

Topics: Famous Americans – Jonas Salk; The Wanamaker Department Stores; it’s all yours; good for you; fair enough; hyphen versus dash; All of the good, none of the bad

Words:

physician

research laboratory

vaccine

virus

immunity

to eradicate

paralysis

epidemic

to patent

department store

amenity

retail

it’s all yours

good for you

fair enough

hyphen

dash

All of the good, none of the bad