During my trip to Chengdu, I visited the beautiful and historic Du Fu Thatched Cottage. Walking through the serene gardens and seeing the...
北京每年春天都是花粉过敏者的难熬季节，不过今年变化很多——中午的校园广播、回家时手机的健康宝小程序里，总能听到关于花粉浓度的提醒。我甚至亲眼看到，学校附近的街心公园里，有工作人员在给那排圆柏树“洗头”，据说那是北京在精准防控，一种神奇的固定剂能让花粉牢牢掉落在地上，让空气中不再飘满过敏原。...
his was our assignment—creating a map of Beijing\'s ancient trees. The process took quite a while, but it was really interesting, and I le...
