Don't swim past that red buoy.

别游过那个红浮标。

But Tom was always a brave, determined, little English bull-dog, who never knew when he was beaten; and on and on he held, till he saw a long way off the red buoy through the fog.

但汤姆一直是一只勇敢、果断的英国小斗牛犬，他不知道自己什么时候被打败了；他一直坚持下去，直到他在雾中看到红色浮标很远。