I have a doubles match in tennis today.

He has a diplocultural background.

It takes time to solve this complex problem.

This problem is very complex, and it is difficult to solve.

There are multiple errors in this document.

This market is in a state of duopoly by two large companies.

It was revealed that he was polygamous, which became a big problem.

As a result of the double trial, he was judged innocent.

Recently, I've been experiencing symptoms of diplopia, and I'm worried.

He is enjoying the same game over and over again by using multiple accounts.