substitute
- 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"