及物动词
1. He signed to me to be quiet. 他做手势要我安静。
2. She signed the child to be quiet. 她示意孩子安静下来。
名词
1. Violence is a sign of weakness or fear, not a sign of strength or confidence. 暴力是懦弱或恐惧的迹象,不是力量和信心的表征。