drop to one's knees：跪下，迫使某人屈服延伸：beat sb. to his knees 打败某人; 迫使某人屈服 bend one's knee to sb. 向某人屈服; 服从某人, 哀求某人 fall to one's knees 跪下(乞求等) fall on one's knees 跪下(乞求等)
