moonlighttorchlightsunlightsunshineblackboard（黑板）railway（铁路）football（足球）watchdog(看门狗,监督人)crybaby(爱哭的人；爱发牢骚的人)scarecrow(稻草人)chewinggum(口香糖)baby-sit(代人临时照看小孩)t...