Without the proper design, a Zero component may drag along dependencies and make assumptions that other developers cannot accept.
没有合适的设计，Zero组件就有可能会拖累依赖项，而且会做出其他开发人员无法接受的假设。
2
Air in the atmosphere's outermost layer is very thin, but air molecules still create drag that slows down satellites, requiring engineers to periodically boost them back into their proper orbits.