under run

Actually I practiced for a long time before I could.

我也是练了很长时间才学会踩水的。

He kept afloat by treading water.

他靠踩水来保持身体不向下沉。

To keep the head above water while in an upright position by pumping the legs.

踩水身体直立时通过蹬脚使头部露在水面以上

The Technique and The Training of Leaping for Women Waterpolo Players;

女子水球运动员踩水支撑跳跃的技术和训练

Kick for the surface and keep kicking. Do not let go of my hand. We're gonna make it, Rose. Trust me.

往下踩水尽量浮到水面，持续踩水。别放开我的手。我们会成功的，露丝，相信我。

The Study on the Skill of Treads Water of Figure Swimming and its Training;

浅谈花样游泳自选动作中踩水的技术与训练

The swimmer trod water before beginning the long swim to the shore.

该泅渡者在向对岸作长距离泅渡之前,在水中保持着踩水姿势。

The crew of the capsized yacht had to tread water until the rescuers arrived.

那艘快艇倾覆了，人们在营救人员到达以前只得踩水。

He missed the bank and landed in the water.

他没踩到岸上，踩到水里去了。

Stop splashing your feet in the puddles.

别踩得水坑水花四溅。

Children love splashing through puddles.

孩子们爱踩溅着过水洼。

Mind you don't tread in that puddle.

小心, 别踩着那水坑.

They get the juice out of the fruit By treading it.

他们踩踏水果从中榨汁。

Between two stools one goes the ground.

脚踩两只船，早晚要落水。

We stamped on the earth. We watered the young trees.

我们踩这些土。我们给小树苗浇水。

His feet hit the gutter.

他的双脚踩进屋顶上的导水沟里。

It is a simple but ingenious foot-operated device that draws water up from wells, shallow aquifers or surface water.

踩踏水泵是一种简单、灵巧的脚踩装置，用于汲取井水、浅水层的水或地表水。

I was wet and I must somewhere have stepped in a puddle.

我身上湿了，一定是在什么地方踩进过水坑。