书面表达。
请你以"Help Our Earth"为题写一篇英语短文。根据下面的提示词，和We should/shouldn't … 等来写作。要求：语气通顺，意思连贯，可适当发挥。60词以上。 
(提示词: care for the earth, cut down trees, pick flowers, plant more trees, help the animals)
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