The challenge is to make the invisible visible.
渔业管理的创新是保护海洋生态系统的关键。
The motto of chivalry is also the motto of wisdom; to serve all, but love only one.
人都知道说话可以显示自己的优点,但不知说话谨慎可以培养德性;人都知道饮食可以有益生命,却不知节制饮食可以养生。