雨水和阳光是促进植物生长的原动力。

Rain and sun are the agents which help plants to grow.

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光会促进植物生长。

Light stimulates plants growth.

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给植物施肥以促进其不断生长。

Feed plants to encourage steady growth.

《柯林斯英汉双解大词典》

一种促进根的形成和芽的生长的植物激素。

A plant hormone that promotes root formation and bud growth.

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阳光促进绿色植物的生长。

Sunlight encourages the growth of green plants.

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但最突出的生理作用就是促进植物的生长。

Of these, the most prominent physiological function is to promote plant growth.

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但最突出的生理作用就是促进植物的生长。

Of these, the most prominent physiological function is to promote plant growth.

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