不修边幅not care about one's appearance
光明正大aboveboard and straightforward
凋零withered, fallen and scattered about; declining
平易近人amiable and easy to approach; easy to read and understand
彷徨walk back and forth; hesitate
权威authority; person or organ of authority
格物致知pursue knowledge through intense study of objects
检讨make a self-criticism; inspect
海枯石烂the seas run dry and the rocks crumble
激变stir up a rebellion; bring about violent/drastic/abrupt change
目空一切consider everybody and everything beneath one's notice
自圆其说make one's statement valid
行将就木have one foot in the grave
袖手旁观look on/stand by with folded arms
阳奉阴违comply in appearance but oppose in heart
震耳欲聋deafen the ear with its roar
风口浪尖the teeth of a storm and the crest of a tidal wave