They then reverse roles and repeat those same steps.

然后两人互换角色口重复上面的步骤。

youdao

Then you can reverse roles and repeat the exercise for as long as you both like.

之后，更换角色，只要两人喜欢可以重复练习。

youdao

An even more intriguing development is that America and China have begun to reverse roles.

更有趣的发展趋势是中国与美国身份开始逆转。

youdao

Witherspoon is a woman, aged thirty-five, with a bundle of grownup roles behind her, yet she must reverse into her teens.

NEWYORKER: Big Men