What does the は in this sentence do? > {} **** {} What does do here? Is it contrasting? Thanks!

`[V1] + + [V2]` or `[V1] + + [V2]` is a fixed expression that describes two actions (V1, V2) are repeatedly happening in rapid succession.

See definition 3:

> **** ****

So this sentence means that someone is repeating the two actions ( and ) again and again.