stawać się poważnym

We tossed each other around a little, then chose swords and got serious.

It is if you're getting serious enough that he'll be spending time around Holly.

He put his arms back down and got serious.

Critics say the whole thing has gotten too serious.

Tommy Tee also started doing production work in the late 1980s but got more serious on the music throughout the 90's.

"I think this has just got serious, sir," he said.

By the time the principal was called, it had gotten pretty serious.

This is a serious problem getting more serious every day.

Things start to get serious with only the top five remaining.

It is high time that we stopped wringing our hands and got serious.