短語(yǔ)詞組短語(yǔ)lag far behind other countries 遠(yuǎn)遠(yuǎn)落後於其他國(guó)家lag far behind developed countries 遠(yuǎn)遠(yuǎn)落後於發(fā)達(dá)國(guó)家lag far behind the need 遠(yuǎn)遠(yuǎn)落後於 返回 lag far behind