| 单词 | understudy |
| 例句 | understudy noun •Mark's understudy got better reviews than Mark himself did:stand-in, substitute, replacement, reserve, fill-in, locum, proxy, backup, relief, standby, stopgap | informal sub, pinch-hitter. |
| 随便看 |
英语同义词词典收录了14896条英语词条，基本涵盖了全部常用同义词或反义词的辨析及翻译，是英语学习的有利工具。