China is Vietnam's close neighbor and largest market and both economies are highly complementary to each other and enjoy huge potential for cooperation.

中国是越南的近邻和最大市场，双方经济互补性强，合作潜力很大。

youdao

A complementary function to the connect operation is the database close function.

与连接操作对应的函数是数据库关闭函数。

youdao

Your cooperation is close and complementary and your works are more complete.

您跟慕辰的合作是很密切，又很互补，这样做出来的作品才会那么完整。

youdao

It is also still debating whether the iPad version should be a close copy of the iPhone app or a complementary, dashboard-type service.

FORBES