这款新型电动汽车的市场推广计划将在下季度开始。

The ___rollout plan for the new electric car model will begin next quarter.

新软件系统的逐步推出预计需要三个月时间。

The ___rollout of the new software system is expected to take three months.

飞机在跑道上滑行了一段距离后才开始起飞。

The plane performed a long ___rollout on the runway before taking off.

在体操训练中，他需要先掌握前滚翻的基本动作。

In gymnastics training, he needs to master the basic forward ___roll first.