Sustain

To keep something going for a long time, like taking care of a plant so it can grow healthy.

Examples

• To help the environment, we need to find ways to sustain our natural resources, like water and trees, so future generations can enjoy a clean and healthy planet.
• In science class, we learned how bees sustain the ecosystem by pollinating plants, which helps produce the fruits and vegetables we eat every day.
• Our team worked hard during practice to sustain our energy levels, so we could play our best in the big soccer game this weekend.

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