他们用慢动作观察跳水运动员的每一个动作，以捕捉所有细节。

They watched the diver's every move in ___slow motion to catch all the details.

我把视频调成慢动作，好看清楚那只鸟是怎么飞走的。

I put the video in ___slow motion to see clearly how the bird flew away.