英语词汇“Original background”的翻译、意思、用法、释义-英汉汉英双解词典

单词	Original background
释义	Original background 本底
随便看	shallow fill shallow filter Shallow Filtration shallow-flatted bottom concrete bins shallow flight screw shallow flight worm shallow floor shallow flow shallow fluid shallow fluidized bed shallowfluted screw shallowfocus earthquake shallow focus earthquake shallow-focus earthquake shallow-focus eathquake shallow fog shallow footing shallowford shallow fording shallow fordings shallow formation shallow forming shallow form water bath shallow fortifications shallow foundation