backing
英 ['bækɪŋ]
美['bækɪŋ]
	    - n. 支持;后退;支持者;衬背
 - v. 支持(back的ing形式)
 
英英释意
- 1. the act of providing approval and support;
 - "his vigorous backing of the conservatives got him in trouble with progressives"
 
- 2. something forming a back that is added for strengthening
 
- 3. financial resources provided to make some project possible;
 - "the foundation provided support for the experiment"