sign up
英 [saɪn ʌp] 美 [saɪn ʌp]
注册;（和…）签约，雇用;报名（参加课程）
例句：
1.Schools or teachers who sign up for the National Math Club receive a kit full of activities and resources, but there's no special teacher training and no competition attached.
报名参加囯家数学俱乐部的学校或教师会收到一整套活动方案和学习资源，但没有专门的教师培训，也没有相应的比赛。
2.Researchers have found that students who sign up to tutor others work harder to understand the material, recall it more accurately and apply it more effectively.
研究者们发现那些报名去辅导其他同学的学生会更加努力的理解学习材料，更加准确地回想起和更有效地运用这些材料。
3.We are inviting you to sign up for free to help your child be an active reader this summer!
我们邀请您免费报名，让您的孩子在这个夏天变得热爱阅读!
4.SIGN YOUR CHILD UP FOR "FLY TO THE MOON CLUB" AND ENJOY A FREE FLIGHT TO ANY DESTINATION IN ASIA!
为您的孩子报名参加"飞向月球俱乐部",享受飞往亚洲任何目的地的免费航班!
