你注意力一旦分散，小球就会下降。

Break your concentration and the ball descends.

youdao

你要谨慎自己的注意力，一旦分散会引起一些不必要的麻烦哦！

You will have to be wary of your own distraction to avoid the wrenches.

youdao

但人的注意力一旦分散，他就不会注意到饱足的感觉，也不会注意食物的感官特征。

But when distracted, a person does not pay attention to either the body's sensations of feeling full, or to the sensory characteristics of the food.

youdao