蓝天: blue sky...
沏: to steep (tea)...
杠杆: lever, pry bar, crowbar, financial leverage...
变异: variation...
字: letter, symbol, character, word, courtesy or style name traditionally given to males aged 20 in dynastic China...
相依为命: mutually dependent for life (idiom); to rely upon one another for survival, interdependent...
人民币: Renminbi (RMB), Chinese Yuan (CNY)...
文献: document...
腺: gland...