Sure. They can be stuck in the gravel. They make the tank more beautiful and provide food and shelter for the fish.

当然要。它们可以在碎石里盘生、美化水箱并为鱼类提供食物和遮蔽。

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As waters receded, volunteer cleanup efforts are gathering pace, with hundreds turning out on Saturday to provide food and shelter to those whose homes have been gutted.

当洪水退去，自发地清理工作正在加速进行，上千人在周六为那些在洪灾中失去家园的人们提供食物和住所。

youdao

Relief agencies are stepping up efforts to provide food, shelter, and agricultural equipment.

救济机构正在加紧努力提供食物、住处和农业设备。

《柯林斯英汉双解大词典》

The United States has already pledged But the United Nations says it needs no less that $543 million to provide shelter,food, water and medical care for those affected by the war.

VOA: standard.2009.06.03

The result, after enough discharges, is that a reef can no longer provide food and shelter for animals and plants, and may well lose its ability to protect the coastline.

ECONOMIST: What price coral?

And the deserted, debris-strewn streets of New York will provide ample food and shelter for the lucky few that survived, he added.

FORBES: UPDATED: Rat Invasion? Will Subway Rodents Move Into Flooded NYC Neighborhoods?

The reaction of both the public and the government was to provide a camp offering them food and shelter and then to let them slip in unnoticed in their quest for a better life.

ECONOMIST: France, race and immigration