Do you say anything when you see another runner breaking a running etiquette rule?
当你瞧见别的跑步者不遵守跑步礼仪的话，你会对他们说些什么了吧？
The worker broke the rule of running this machine.
这名工人违反了操作这台机器的规则。
When engine is running, the valve and piston moves according to a certain rule.
发动机在运转时，气门、活塞各遵循一定的规律。
When engine is running, the valve and piston moves according to a certain rule.
发动机在运转时，气门、活塞各遵循一定的规律。
应用推荐