| 例句 |
The machines start to wear down, they don't make as many nuts and bolts as they used to.机器开始出现磨损，螺母和螺钉的产量不如从前了。The nut was sitting so awkwardly that he couldn't turn it.螺母的位置很奇怪，他拧不动。You can hear the missing screw rattling around inside.可以听到脱落的螺母在里边哐啷哐啷响。She has invented a nifty little gadget for undoing stubborn nuts and bolts.她发明了一种灵巧的小工具，用来松开紧固的螺母和螺栓。 |