学习要不断努力，否则就要退步one must consistently work hard at one's studies or risk regressing; studying is like navigating a boat against the current: forge ahead or be driven back

• 要苦学，学如逆水行舟，不进则退，贵在持之以恒。

  One must study hard for learning is like navigating a boat against the current: forge ahead or be driven back. It is important to persevere.

• 保持学习毅力，学如逆水行舟，不进则退，不能三天打鱼、两天晒网，要树立“终身学习”理念。

  Maintain the will to learn. Learning is like navigating a boat against the current: forge ahead or be driven back. One cannot fish for three days and dry the nets for two days. One must establish the idea of "lifelong learning."