短語詞組短語comprehension on business background 專業(yè)背景理解Introduction on cultural background 文化背景知識介紹on the background of 背景上Researching on Negotiation Background 談判背景調(diào)查On the Background front 放在背景板前麪lecture on culture background 文化背景講解On deep background 深層幕後消息來源Click on the background 背景點擊Depending on the background 眡口背景 返回 on background