keep up坚持; 维持; 继续; 不低落; 不为(疾病等)所屈;【刷】用大写正体排印keep up with跟上,不落后; 与...并肩前进与...保持接触keep it up不松劲,照原样继续下去keep one's end up精神饱满地对付keep up appearanc...