ensure
英 [ɪn'ʃɔː; -'ʃʊə; en-]
美[ɪn'ʃʊr]
	    - vt. 保证,确保;使安全
 
英英释意
- 1. make certain of;
 - "This nest egg will ensure a nice retirement for us"
 - "Preparation will guarantee success!"
 
- 2. be careful or certain to do something; make certain of something;
 - "He verified that the valves were closed"
 - "See that the curtains are closed"
 - "control the quality of the product"