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词汇1/10/18
这几个单词出自，怎样确立paper的主题。感觉讲得深入浅出，特别细致。不过，鉴于这几天困得不行，来不及读啊。。
mull over 认真琢磨
jot down- to write a short piece of information quickly 草草记下
Mull over your subject while listening to music,taking a walk,or driving to work;or jot down inspirations or explore your questions with a willing listener.
tentative-not definite or certain, and may be changed late试验性的，不确定的
try to settle on a tentative central idea
preliminary- happening before something is more important,often in order to prepare for it
Think of your working thesis as preliminary
