Definition: to give all your attention to something Level: C2
他埋头于工作。
He ___buried ___himself ___in his work.
由于害怕亲密关系，他埋头于工作。
Terrified of intimacy, he ___buries ___himself ___in his work.
为了应对失去，她埋头于研究。
She ___buried ___herself ___in her research to cope with the loss.
