那位老练的舵手稳稳地驾驶着小船穿过狭窄的峡湾。

The skilled ___helmsman steered the small boat safely through the narrow fjord.

作为新项目的总负责人，她担任了这次改革的掌舵人。

As the head of the new project, she served as the ___helmsman for this reform.