Discuss pollution with your child, emphasizing how nice a clean street, lawn, or park looks.和孩子讨论污染问题，强调清洁的街道、草地或公园有多么美丽。He listened in silence as Niccolini rattled on, emphasizing his remarks with one hand and steering ...
Discuss pollution with your child, emphasizing how nice a clean street, lawn, or park looks.和孩子讨论污染问题，强调清洁的街道、草地或公园有多么美丽。He listened in silence as Niccolini rattled on, emphasizing his remarks with one hand and steering ...