But in the most trying situations, where the slightest want or inaccuracy would have been fatal, these always seemed to move in comfortable reliance on their strength and skill, the limits of which they never appeared to know.

但在最艰难的情况下，最轻微的需要或不准确都会致命，这些人似乎总是在舒适地依赖他们的力量和技巧，他们似乎从来不知道这些的极限。