·edges (城市边缘

1. continuous in form and impenetrable to cross 连贯不可穿透的 / 墙、路缘石、海岸线

2. fragmentary edges and the lack of relation felt 模糊碎片式的/ 杂糅的滨江界面harborfront with railroad yards buildings bridges docks..., 干道artery, 立交桥

3. uniting seams 封合口 / 路径paths

Since I went to work in September,Since I don't like feeding bottles,The baby's milk intake has dropped a lot,Especially 星期一，One or two times less than 100ML during the day,When it's good, I can drink more than 200-300,I eat a lot after I come back in the evening,Weight gain is very slow.The supplementary food mainly eats egg yolk and rice cereal.The chick still doesn't like drinking water.结果是， the lack of milk and dry complementary foods caused difficulty in defecation in mid-September.She only changed her tricks to eat vegetable puree, juice, fruit, 等等？

辉哥答疑：#学科大挑战#
1. lack既是名词，又是动词，而且含义都是“缺乏”，所以我们在区分时可以应用一个小技巧。
2. 有些时候这个单词是什么词性，并不是这个单词本身说了算的，而是相邻的单词决定的。
3. lack作动词时，其后一般跟sth；lack 作名词时，其后一般跟of（可以理解为介词of的前后一般都是名词性），这样再去看使用环境即可解决问题。
#在微博过寒假#