关于青年担当的英语表达，综合权威资料整理如下：

一、核心责任与担当

1. "The youth are the future leaders and contributors, with a crucial mission and responsibility in the new era."（青年是未来领导者和贡献者，在新时代肩负关键使命与责任）

2. "As responsible citizens, we must be prepared to contribute our talents to the nation, whether in daily life or in professional fields."（作为负责任公民，我们需为国家的贡献做好日常准备，无论在生活还是职业领域）

二、行动准则与品质

1. "Honesty is the foundation of responsibility； actions should always align with words."（诚实是责任的基础；行动需与言语一致）

2. "We must be brave, passionate, and compassionate, striving to make our country a source of pride for all citizens."（需具备勇气、热情与爱心，努力让国家成为全体公民的骄傲）

三、时代使命与担当

1. "In the face of challenges like climate change and inequality, we must unite and take decisive action."（面对气候变化、贫困等挑战，我们必须团结一致采取果断行动）

2. "Preserving our natural heritage and fostering lifelong learning are integral to our role in the global community."（保护自然遗产和培养终身学习能力，是我们对全球社会的责任）

这些表达既体现了青年在时代背景下的责任担当，又涵盖了个人品质与行动准则，可作为作文写作或口语表达的参考。