leg up

基本解释

While maintaining this position, lift the top leg up and down with control.
保持这种姿势，同时上面的腿有控制地做抬起与放下的动作。
But downing that coffee, tea, cola, or chocolate bar may be giving you a leg up in another unexpected way: It can improve your proofreading skills, according to a new study.
但其实咖啡、茶、可乐和巧克力棒还能在其他方面给你意想不到的帮助：一项最新研究表示，它能帮你提高你的校正能力。
Learning SQL will give you a leg up when you’re communicating your goals to the DBA team. They won’t have to decipher your meaning and you can tell them exactly what you need.
学习SQL会在你与数据库管理员团队交流你的目标时给予帮助，他们不需要解析你的意思，你可以确切地告诉他们你的需求。

told a story of an incident that happened shortly after he lost his leg to cancer at age 12, when his father helped him up an icy, snow-covered hill,telling him "There is nothing that you cannot do."
And it turns out that the dog— when they zapped part of its brain, its leg would kick up.
结果是那只狗,当研究者们电击某个大脑区域时,狗的四肢便会乱踢起来
耶鲁公开课 - 心理学导论课程节选
And I like to extend it all the way up the leg,
我想把它沿着腿一直往上纹，
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The Internet was supposed to give small businesses a fast and cheap leg up.
FORBES: Net Losses