·2,447,543篇论文数据，部分数据来源于NoteExpress
I had never seen the sky white with smog before, and my chest hurt from the pollution, making it difficult to breathe.
我从来没有见到过被烟雾笼罩的白色天空，我的胸口因污染的空气而感觉疼痛，我感到呼吸困难。
youdao
应用推荐
模块上移
模块下移
不移动