To start thinking carefully about something
开始认真思考某事 (kaishi renzhen sikao moushi)
"It’s time to put your thinking cap on for the quiz."
"该为测验认真动脑了。" (gai wei ceyan renzhen dongnao le)
to leave a message or opinion on a social media post
to continue progressing despite obstacles or setbacks
to express an opinion openly and clearly
To prepare for a difficult or dangerous situation.
a sudden clever idea or solution
to use unfair or dishonest methods to win
