起跑员挥动旗子示意比赛开始。

The ___starter waved the flag to indicate the race had begun.

作为一名新手跑者，他是马拉松比赛的第一个起跑者。

As a beginner runner, he was the first ___starter in the marathon.

我们点了一份蔬菜汤作为开胃菜。

We ordered a vegetable soup as our ___starter.

他换了新车后，启动器工作得比以前更顺畅了。

After he got a new car, the ___starter worked much smoother than before.