economize
英 美[ɪ'kɑnə'maɪz]
	    - vi. 节约,节省;有效地利用
 - vt. 节约,节省;有效地利用
 
英英释意
- 1. use cautiously and frugally;
 - "I try to economize my spare time"
 - "conserve your energy for the ascent to the summit"
 
- 2. spend sparingly, avoid the waste of;
 - "This move will save money"
 - "The less fortunate will have to economize now"