他摆出了起跑的姿势。

He is in a ___starting position.

孩子们刚开始学习游泳。

The children are ___starting to learn how to swim.

我们正在启动一个新项目来提高效率。

We are ___starting a new project to improve efficiency.

这次徒步旅行将从山脚下的营地开始。

The hiking trip will be ___starting at the campsite at the foot of the mountain.