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1·Unescorted children are not allowed beyond this point.

无人陪护的儿童不允许越过这里。《柯林斯英汉双解大词典》

2·The colouring pigments from the skins are not allowed to bleed into the grape juice.

这些果皮的色素不允许掺混进葡萄汁中。《柯林斯英汉双解大词典》

3·Throwing rubbish is not allowed.

不允许扔垃圾。

4·In China, driving after drinking is not allowed.

在中国，不允许酒后驾车。

5·Kids under 18 are not allowed to drive.

18岁以下的孩子不允许开车。

6·Pets are not allowed to enter the hall.

宠物不允许进入大厅。

7·We are not allowed to speak loudly in public.

我们不允许在公共场合大声喧哗。

8·Without permission, children are not allowed to swim alone here.

未经允许，孩子们不允许单独在这里游泳。

9·We are not allowed to laugh when we are eating.

我们吃饭的时候是不允许笑的。

10·I am not allowed to stay up late by my parents.

我父母不允许我熬夜。