Stir and wash laundry up and down with stirring pulsator.

依靠搅拌翼搅拌，上下翻动洗衣。

The star was a high-amplitude pulsator until right before the observing run started, when it mysteriously became a small-amplitude pulsator.

直到观察之前该恒星还是一个高振幅震动器，接着它就谜一般地变成了小振幅震动器。