1.wind along 蜿蜒前行
The walls undulate according to the terrain and wind along rivers and lakes.
城墙依地势而起伏，顺河湖而蜿蜒向前。

2.tuck into 隐藏在...
Please tuck your shirt into your trousers.
请把衬衣塞到裤子里。

3.all this to say 所有的这些是想说明
All this to say, they're black box equivalent.
所有的这些是想说明，它们是功能相当的黑盒。