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。

youdao

Children must be accompanied by an adult.

儿童必须要有大人陪同。

《牛津词典》

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。

《牛津词典》

The Home Ministry is warning the general strike, Monday and Tuesday, may be accompanied by attacks against security forces.

VOA: standard.2009.06.21

And, it will be accompanied by radiation.

这时会伴随着辐射。

麻省理工公开课 - 固态化学导论课程节选

To ensure overall success, the GOP budget must be accompanied by pro-growth monetary reforms.

FORBES: An Open Letter To House Speaker John Boehner

This year, she'll be accompanied by the Duchess of Cornwall for her Queen's Speech debut.

BBC: 'Evans the News' claims support of MPs after arrest

Among older patients heart surgery can be hazardous and can be accompanied by difficult recovery periods.

FORBES: Breakthrough Heart Valves: How Will Patients Decide?