There are experts on hand to give you all the help and advice you need.

有现成的专家随时为你提供所需的一切帮助和建议。

《柯林斯英汉双解大词典》

Help was at hand.

援助近在咫尺。

《牛津词典》

He is a green hand. Let's help him.

他是一个生手，我们帮他一把吧。

youdao

He says having relief supplies on hand will help alleviate some of the suffering experienced by people forced to flee their homes.

VOA: standard.2009.03.28

Please do it carefully, and I might even hand out a little bit of a study guide to help you with that.

希望大家认真阅读,我会发学习指南，来帮助大家。

耶鲁公开课 - 旧约导论课程节选

because they, not necessarily all video games, but some help with hand-eye coordination development

因为，有些电子游戏有助于手和眼的协调性，但不是所有电子游戏都会。

电子游戏 - SpeakingMax英语口语达人

That gives her a free hand to help out a grown child with creditor or marital problems.

FORBES: Death, Taxes and Dice Rolling

But if Islamic militants threatened Uzbekistan, Russia would at least be on hand to help.

ECONOMIST: Uzbekistan

On Tuesday, Social Justice Minister Edwina Hart was on hand to help give out carrot soup.

BBC: NEWS | UK | Wales | Restaurants helping out homeless