1、
It's Tree Planting Day. We are going to plant trees in the park/ around the lake.
明天是植树节。我们打算在公园里（在湖的周围）植树。
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2、
Our government declared March 12 as National Tree planting Day in 1980s.
提倡植树造林绝对不是在近几年才刚刚提出来的，在上世纪80年代国家就把每年的3月12日作为我国的植树节。
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3、
Brothers, Arbor Day is up, let's go tree-planting bar, let's do what's modest.
兄弟, 植树节到了, 咱们一起去植树吧, 尽一下咱们的微薄之力.
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