阿里周三宣布，淘天集团董事长吴泳铭兼任淘天集团CEO，原CEO戴珊将协助筹建阿里巴巴集团资产管理公司。请看本报周四的报道：

Alibaba Group Holding Ltd. has replaced one of its most experienced executives at the helm of e-commerce and plans to create a firm to oversee its investment assets around the world, the latest in a series of sweeping changes to roil the once-dominant Chinese online juggernaut.

The company said Wednesday CEO Eddie Wu will take over as chief executive of domestic e-commerce arm Taobao and Tmall Group effective immediately, boosting his direct control over the group’s core businesses.

报道中的at the helm就是“掌舵、掌权”。例如：

She is the first woman to be at the helm of this corporation.

她是这家公司的第一个女掌门。