I was required to hold out my arms and flex my pectorals.我被要求伸展手臂，收紧胸肌。He can only hold out a few more weeks.他只能再坚持几周了。We must hold out. We mustn't be frightened by the difficulties.我们必须顶住, 不能被困难吓倒....
His eyes were as hard as flint.他的眼神冷酷无情。Ah, he was the man to have a headpiece, was Flint!啊, 福林特可真是个有头脑的人!Under the pressure, the flint crumbled into fragments...燧石在压力的作用下碎成了小块。The Indians chipped flint arrowhead.印第安人凿制燧...