fall to (doing sth)

begin (to do sth) 开始(做某事): They fell to (eating) with great gusto. 他们开始津津有味地大吃起来. * She fell to brooding about what had happened to her. 她开始沉思默想自己的遭遇. fall to sb (to do sth) become the duty or responsibility of sb 成为某人的义务或责任: It fell to me to inform her of her son's death. 要把她儿子死亡的消息告诉她, 这责任落在了我的肩上.


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