短語詞組短語in -depth vestigation and study 深入調(diào)查研究in depth investigation 深入調(diào)查An in -depth investigation 深入調(diào)查Do in -depth investigation 做深入調(diào)查depth of investigation 探測深度;勘探深度the depth of investigation 研究深度Detailed and in -depth investigation process 調(diào)研過程細(xì)致而深入 返回 investigation depth