Water is preferable. Beer can be used as needed.

饮水更为可取。不得已时，可以来点啤酒。

youdao

This object collection can be used as needed to extract relevant information.

该对象集合可在需要时用来摘取相关信息。

youdao

It can be used as needed to help relieve symptoms, or taken daily on a maintenance basis.

可以用来帮助缓解症状，作为日常保健基础，每天服用。

youdao

Their documentation can be used in the future as a study tool and for language protection efforts,if needed.

VOA: special.2009.12.02

On Monday, as the storm churned off the Atlantic Ocean, Mr. Fugate said there were 400 generators positioned to help affected parts of the East Coast, ready to be used as needed.

WSJ: Few Big FEMA Generators Humming After Sandy

Mr Cook said a universal method was needed as coastguards used latitude and longitude when they rescued at sea, and people used postcodes and street names when they gave directions.

BBC: South West Coast Path gets 500th 'life-saving' sign

What if the condo management put money in a community fund to pay for a droppings-cleaner, as needed, and used whatever was left at the end of the month for a get-together for all dog owners and their dogs?

WSJ: Dan Ariely's Battle Plan for a Condo's Dog Wars | Ask Ariely