get off the ground [ɡet ɔf ðə ɡraund]

以下由轻松背单词网站提供

开始，（使）取得进展

How does such a heavy plane get off the ground?这样一架重型飞机怎样起飞？
The aircraft hadn't enough power to get off the ground.那架飞机的动力不够，无法起飞。