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1.dose 一剂
One dose of penicillin can wipe out the infection.
一剂青霉素即可消除感染。
2.social media 社交媒体
Social media has become a platform for advertisements.
社交媒体已经成为做广告的一个平台。
3.vaccine 疫苗
Researchers around the world are collaborating to develop a new vaccine.
世界各地的研究人员正在合作培育一种新的疫苗。
4.figure out 想出，弄明白
They're trying to figure out the politics of this whole situation.
他们正试图弄明白整个形势的利害关系。
5.look up 查阅
Why don't you look it up in the encyclopedia?
你为什么不去查百科全书？
