to start working seriously
开始认真工作 (kaishi renzhen gongzuo)
"If you want to pass the exam, you’d better buckle down and study."
"如果你想通过考试，你最好buckle down并开始学习。" (Rúguǒ nǐ xiǎng tōngguò kǎoshì, nǐ zuì hǎo buckle down bìng kāishǐ xuéxí.)
to not express your emotions or worries
Don’t take on more responsibility than you can handle.
being examined very closely
the increased effectiveness or value that results from two o...
A startup valued at over one billion dollars.
to regain control of your emotions or behavior
