get down to

get down to 开始认真做某事，开始认真注意（或对待）某事

【用法】该短语后接名词、代词、动名词或what引导的从句。

【例句】

◆ It's hard to get down to work after a nice holiday．度过了愉快的假日之后，很难一下子认真投入工作。

◆ I really must get down to filling in the tax form．我真的要认真填写税收报表了。