短语词组短语speed up efforts to 加快努力;加快尽力up p to date 在进行中;直到最后的;现代化的catch up time to 追诉时间up -to symbol [计]直到符号;翻译Wind up business to 闭业made up mind to 决意up p to 胜任;直到;多达;取决于up exercises to music 广播操 返回 up to