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This is a kind of flower.

Hexose is a type of monosaccharide, mainly used as an energy source.

This feature can be used easily.

We should use more renewable energy.

We are using LED bulbs for energy saving.

This problem is simply a matter of not having enough time.

The source of this river is halfway up the mountain.

He mainly eats vegetables.

The lens of this camera is easy to attach and remove.