substitute
英 ['sʌbstɪtjuːt]
美['sʌbstɪtut]
	    - n. 代用品;代替者
 - vi. 替代
 - vt. 代替
 
英英释意
- 1. a person or thing that takes or can take the place of another
 
- 2. an athlete who plays only when another member of the team drops out
 
- 3. someone who takes the place of another (as when things get dangerous or difficult);
 - "the star had a stand-in for dangerous scenes"
 - "we need extra employees for summer fill-ins"