fill-in
英 [fɪl ɪn]
美 [fɪl ɪn]
n. 临时填补空缺的人，代替者，补充物
adj. 临时填补性的
复数：fill-ins
英英释义
noun
- 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