Children must be accompanied by an adult.

儿童必须要有大人陪同。

All research proposals must be accompanied by a full motivation.

所有研究计划书均须详述研究动机。

Children under 15 years are free and must be accompanied by an adult.

15岁以下儿童票价免费，但需在成人的陪同下。

Even administrative regulations must be accompanied by persuasion and education.

就是行政命令也要伴以说服教育。

And, it will be accompanied by radiation.

这时会伴随着辐射。