You are allowed 20kgs of baggage unless indicated otherwise on your ticket.

除非票上另有注明，否则可携带行李为20公斤。

《牛津词典》

You are not supposed to enter the teachers' office unless you are allowed to.

除非得到允许，否则你不能进入老师的办公室。

youdao

Don't forget to make sure you are allowed to examine it closely if the tree isn't on public land.

如果这棵树不在公共土地上，别忘了确保你可以仔细检查它。

youdao

Periodic Table, Table of Constants, and you are allowed an aid sheet, an 8-1/2 by 11 sheet of paper.

元素周期表，常数表，你允许带帮助表格，一个8-1/2乘11的纸。

麻省理工公开课 - 固态化学导论课程节选

So you can go at 7 o'clock in the evening and kids are not allowed,

所以，你可以在晚上七点的时候去，那时候，孩子就不可以进去了，

神奇的博物馆 - SpeakingMax英语口语达人

You are allowed to use on the test the official version of the Periodic Table of the Elements which most of you should have by now.

在测试中你们可以使用,化学元素周期表的官方版本,你们应该大部分都有了吧。

麻省理工公开课 - 固态化学导论课程节选

You are allowed to make as many transfers between IRAs as you like, uninhibited by the rule.

FORBES: What You Need To Know About Your IRA Rollovers And Transfers

One of the great things about the blogosphere is that you are allowed to change your mind.

FORBES: Welcome to the Real World

You are allowed a bent arm all the way through and allowed to move it within that slightly.

BBC: Harbhajan Singh