口齿伶俐

Explanation: Articulate: talk, conversation; clever: smart, flexible. Deft conversation, to cope. Described as eloquent. 　　Source: Qing Cao Xueqin's "Dream of Red Mansions" Although the thirty-third back to the gem Suri clever mouth, this time as one is sad for the Jinchuan Er, wait for them to have killed life perish. "