[chéng qīng]
(清亮) clear; transparent
The water of the lake is green and clear.
湖水碧绿澄清。
clarify some facts
澄清事实
clear up a misunderstanding
澄清误会
demand clarification
要求澄清
clear up ambiguity [obscurity]
澄清模棱两可之处
The President's statement cleared the air of rumours and guessing.
总统的声明澄清了种种谣传和猜测。
bring peace and order to the country
澄清天下