NoteaboutPostStructure(关于内容结构的说明）BasingonpreviousnoteofVol.1,Imanagetooptimizetheindecentclassificationmainlyaboutphrases.Itrytohighlighttheimportanceofcollocationsbothinsectionof"Words"andinthatof"Phrases".Also,afigurativeexpressionoraquotationcouldbebetterclassifiedinto"Expressions"now.In"Words"se
