我们先来说说 “in” 和 “on” 的基本区别：介词 “in” 的意思是 “在一个地点、一片区域或封闭的立体空间内”；介词 “on” 的意思是 “在物体的表面”，突出说明 “物体之间 …
Use “on the tree” when referring to something attached or growing on it, like apples or leaves. For example, “The apples are on the …
I saw him climbing up/on or climb the tree to pluck the mangoes. "Climb", by itself, means to go upward gradually. Then why do we use …
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