Pinyin: bian4 lian3 Definition: to turn hostile suddenly/face changing, a device of Sichuan Opera, a dramatic change of attitude expressing fright, anger etc
Pinyin: cheng2 yu3 Definition: Chinese set expression, often made up of 4 characters or two couplets of 4 characters each, often alluding to a story or historical quotation/idiom/proverb/saying/adage/set expression/CL:條|条[tiao2],本[ben3],句[ju4]
Decomposition Levels: Level 1: Only divided once. So only two components. Level 2: Radical Decomposition. The character gets decomposed into its lowest radical components. For the complete list visit the Radical wikipedia page. Level 3: Graphical Decomposition. Shows all the strokes & lowest level of components that make up the character. If you see questions marks or too many "block" characters, especially when it comes to level 3 decomposition you might need the correct font.