您要查找的是不是：
- He gave me a duplicate key of his house. 他给了我另配了一套他房子的钥匙。
- Enclosed is our program invoice in duplicate. 随函附上我方估价单一式两份。
- Usually we ask for a draft in duplicate. 我们通常要求草图一式两份。
- The office has been humming with activity. 办公室一直忙着搞活动。
- Duplicate data or information copied from one medium to another. 从一种介质向另一种介质拷贝的复制数据或信息。
- The threat of war has depressed business activity. 战争的威胁使经济萧条。
- In printing, the creation of duplicate plate by electrolysis. 在印刷技术中，用电解法生产的复制板的方法。
- There has been a lot of activity in the town today. 今天市中心相当热闹。
- The town was humming with activity. 该市镇生气勃勃，呈现一片热闹的景象。
- Conclusion HBV duplicating active mode patients are easily infected by HDV and HDV infection doesn't have influence on the duplicating of HBV. 结论HDV的致病机制复杂，HBV复制活跃者比HBV复制缓慢者更易感染HDV病毒，且HDV感染不影响HBV复制。
- Stamp collecting is my favorite activity. 集邮是我最喜爱的消遣。
- The store was a scene of great activity. 这家商店顾客盈门。
- He once engaged in anti-government activity. 他一度从事反政府的活动。
- The office is humming with activity. 办公室里一片忙碌。
- A center of interest or activity. 中心兴趣或活动的中心
- Showing no optical activity in polarized light. 无旋光的极化光下无光学反应的
- An increase, as in movement or business activity. 进步，改进，改善运动或商业活动的进步或兴隆
- You'll just have to duplicate your performance. 你只需重演你的节目。
- Indulgence in or pursuit of sexual activity. 纵欲; 追求肉欲对性行为的放纵或追求
- The phenomena associated with volcanic activity. 火山现象与火山活动有关的现象
