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1·He has posted a sign up that says No Fishing.

他已经张贴了一个标牌，写着“禁止钓鱼。”《柯林斯英汉双解大词典》

2·Sign up is first-come, first-serve.

报名先到先得。

3·She plucked up the courage to sign up for the competition.

她鼓起勇气报名参加比赛。

4·After you sign up in the app, RunKeeer will ask you why you are exercising.

注册应用程序后，运动日志会问你为什么要锻炼。

5·The students who do not sign up before Friday lunchtime won't be able to choose their afternoon activities next week.

周五午餐前没有报名的学生下周将无法自行选择下午活动的内容。

6·Campers who sign up for the 2-week secret agent camp can get to know about the life of real secret agents by learning strategies and military skills on the paintball field.

报名参加为期2周的特工训练营的学员可以在彩弹场上学习战术和军事技能，了解真正的特工生活。

7·What language class did you sign up for?

你报名参加什么语言课程？

8·Sign up with your mobile phone number, then set a password.

用你的手机号码注册，然后设置密码。

9·Since you are a psychology major, you should sign up for it.

既然你是心理学专业的，你应该去报名。

10·You just sign up to be on the team of whoever you can gather.

你只要报名加入你能召集的任何人的队伍。

报名

1·Sign up for management classes, so you'll be ready to join the family business when you graduate.

报名参加管理课程，这样你就可以在毕业时加入家族企业。

2·You just sign up to be on the team of whoever you can gather.

你只要报名加入你能召集的任何人的队伍。

3·I'd like to sign up for some voluntary work with the environment council.

我想报名参加一些环境委员会的志愿工作。

4·Why not sign up for the lessons offered by the physical education department?

为什么不报名参加体育部开设的课程呢？

5·If we both sign up before Friday, we can get a discount on a six-month membership.

如果我们都在星期五之前报名，那么办理六个月的会员会有折扣。