求翻译：每个人都应该关注自己的健康 是什么意思? ... 今天你在上课吗 » Today you did in class 国学类 » National studies classes 他相信每一本书他都能找到 » He believed that each book he is able to find ...
ButHutchings argues that thesketchactually shows blocksonthe ground being pulled by a weightattached to a pulley—the same type ofexperimentyou might dotoday in a high schoolphysicsclass.