(直到最近) people began to pay attention to the environmental protection.
最近,正确答案
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(直到最近) people began to pay attention to the environmental protection.
请帮忙给出正确答案和分析,谢谢!
(直到最近) people began to pay attention to the environmental protection.
请帮忙给出正确答案和分析,谢谢!