更新时间：2024-12-23 19:26:57
动词 sign up:- engage by written agreement
- join a club, an activity, etc. with the intention to join or participate, "Sign up for yoga classes"
- signing electronically
- sign/ sain/ n.
- sign
- sign expectancy theory
- sign truncated feature
- Signed directed graphs
- Sign language training
- signor
- sign transfer function
- sign of a breakthrough
- signle crystal alumina
- sign picture character
sign-up是什么意思 sign-up在线翻译 sign-up什么意思 sign-up的意思 sign-up的翻译 sign-up的解释 sign-up的发音 sign-up的同义词
