A dog with sound, stable temperament will always be a sound, stable dog, even in a lousy environment. 一只可靠的狗，稳定的气质始终是可靠，稳定的狗，甚至处在一个恶劣的环境下。
Buck struggles bravely against the hostile environment in the Northland and rapidly gets accustomed to it with its great adaptability. 布克勇敢地与北部恶劣的环境斗争并以其非凡的适应能力迅速适应了那里的一切。
