ZhaoHong No.49

IntensiveCoLearning · Jul 14, 2024 · c99b121 · c99b121
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@@ -503,5 +503,11 @@ No.48
 
 ### 2024.7.14
 
-https://www.bilibili.com/video/BV1U7411a7xG?p=49
+No.49
+- 1873 all aboard but mind the gap is the world's first underground passenger railway opened in London.
+- 1863 "All aboard, but mind the gap" as the world's first underground passenger railway opens in London.
+
+### 2024.7.15
+
+https://www.bilibili.com/video/BV1U7411a7xG?p=50