Translation of wackeln

In the meantime I am listening to some Spanish CDs. They are intended for the car, but no one can tell you when to listen to it, how many times and how often. Please understand that I work a lot.
Certainly, in a healthy mind, these feelings should not arise from bad thoughts. Not only the thought but also the reaction which arises and develops from this thinking is racism. Do you understand?
The next day it we had another hike, this time much further away, but luckily downhill. We again walked through various rice fields and rice terraces, along rivers and through hill tribe villages.