相辅相成

Said in one Chinese podcast line.

• 而且他俩也是一个相辅相成的一个东西

  Moreover, the two of them are also complementary to each other.

  

  百岁人生给妈妈用的养老服务：养老科技公司CEO的创业初心

The shows belong to their publishers, and each line plays from the publisher’s own file. Translations are machine-made. Chinese books and courses on Amazon (affiliate link).