to be clear (about the facts); to quell disturbances; to become clear (by precipitation of impurities); to make sth clear; limpid; to clarify; to put in order; to settle (of liquid); clear (of liquid); precipitate (chemistry)
（形）清澈明净：溪水澄清。
（动）使混乱变为安定：有澄清天下之志。
（动）比喻搞清楚（事实、问题等）：澄清是非。［反］歪曲。
清澈而明亮。
使混乱的局面变得清明。