in-depth investigation

短語(yǔ)詞組

短語(yǔ)

• in -depth vestigation and research 深入調(diào)查研究
• An in -depth investigation 深入調(diào)查
• Do in -depth investigation 做深入調(diào)查
• Detailed and in -depth investigation process 調(diào)研過(guò)程細(xì)致而深入
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