您要查找的是不是：
- 经scripture
- 经期menstrual period
- 心经heart channel
- 经编warp knitting
- NP-hardNP-hard
- 道德经Classic of the Virtue of the Tao
- NP-hard问题NP-hard problem
- 经授权的authorized
- NP-hard难题NP-- hard problem
- 经书Confucian classics
- Hard E综合征Hard E syndrome
- 绝经menostasia
- hard money (美国)现金
- 爱经Kamasutra
- hard money (硬币)硬通货
- hard mouth (禽类)硬嘴
- 五经the five classics
- hard wax(嫁接用)硬蜡
- 外经foreign economic relations
- 经向warp direction
