Ⅰ. hurry up 中的up是副词。“赶快、快点、加紧”之意。含有催促、命令之意。且常用于肯定结构，偶而用于否定结构时，up可省。如：
① Hurry up! There is not enough time. 赶快!时间不够了。
② Don’t hurry. There is enough time. 别着急。还有时间。
Ⅱ.hurry off / away中的 away是副词。“匆匆离去”无催促之意。如：
① Li Lei hurried off /away without a word. 李雷一句话不说就匆匆走了。
② With this, the woman hurried away / off. = With this, the woman went away in a hurry.说完这话，那妇人匆匆离去。
Ⅲ. hurry to 是短语动词。to 介词。“匆匆去某地”如：
① He hurried to his office. = He went to his office in a hurry.
Ⅳ. in a hurry. 介词短语。“匆忙地(地)”，“慌忙地(的)”
① She dressed herself for the party in a hurry. 她为参加联欢会而匆忙地换穿衣服。
② You are always in a hurry. 你总是匆匆忙忙地。