短語(yǔ)詞組短語(yǔ)National trunk highway network 國(guó)道主乾線公路網(wǎng)national l highway 國(guó)道National Defense Highway System 州際公路系統(tǒng)National Trunk Highway System 中國(guó)高速公路national defense highway 國(guó)防公路national trunk highway 國(guó)家乾線公路national main highway 國(guó)道national defence highway 國(guó)防公路national debt highway 國(guó)債公路 返回 national highway