例句：
She began speaking politely, even correctly.
她开始礼貌地讲了起来，甚至还很得体。
They spoke to me very seriously but politely.
他们非常严肃但又很有礼貌地与我谈话。
He offered the boys some coffee. They declined politely.
他要给男孩们来些咖啡。他们礼貌地拒绝了。
