巧克力在数学课上可以助你一臂之力。

Chocolate may help you in math class.

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你的孩子的名字要以元音结尾，这样当你喊他时，这样的名字会助你一臂之力。

Always end the name of your child with a vowel, so that when you yell, the name will carry.

youdao

朋友是总是会助你一臂之力，不管你身在那里。

A friend is a hand that is always holding yours, no where you are, no matter how close or far apart you may be.

youdao

and if people like you, they will help you out.

如果人们喜欢你，他们会助你一臂之力的。

在超市遇到的人 - SpeakingMax英语口语达人

And now, I am a mentor helping you to succeed.

如今我是为你的成功助一臂之力的老师。

I was 课堂 - SpeakingMax英语口语达人