树上的叶子黄了用英语怎么说

"The leaves on the tree have turned yellow" 树上的叶子已经变黄了。 这是一种常见的表达方式，用来描述树叶因为某些原因（如气候变化、疾病、营养不足等）而变黄的现象。

例句:

"The leaves on the oak tree have turned yellow, I think it's because of the dry weather." 橡树的叶子已经变黄了，我认为是因为天气干燥。
"I noticed that the leaves on the maple tree have turned yellow, it might be a sign of a disease." 我发现枫树的叶子已经变黄了，可能是疾病的迹象。
"The leaves on the apple tree have turned yellow, it's probably due to lack of nutrients in the soil." 苹果树的叶子已经变黄了，可能是土壤中缺少营养。