Cainiao, the logistics arm of the Alibaba Group, has secured a go-ahead from board members of the Chinese e-commerce giant, for its earlier announced initial public offering (IPO). 阿里巴巴集团旗下的物流部门菜鸟已获得这家中国电子商务巨头董事会成员的批准,进行其早些时候宣布的首次公开募股。