关于教育的斗争不仅仅是经济和政治问题，还涉及民主的本质和未来的意义。

Sustainability is the only path forward for aquaculture—without it, we risk losing more than just profits.

在一个快速变化的世界里，诚信和质量的价值观是永恒的。

解释：大旱之年收购船只，大水之年抛售船只并收购车辆，待到大旱之年再抛售车辆。

A woman must have money and a room of her own if she is to write fiction.