That knife does not cut properly, so you should use a sharpener to sharpen it.
Ese cuchillo no corta bien, hay que usar un afilador y afilarlo.
After dinner we walked back and saw some interesting sites and shops on the way. Everything was quite impressive, as always in a new country. We entered the hotel and took an elevator to our room. It must have taken them years and ten's of thousands of workers to accomplish the tasks of constructing such spectacular compounds. We took many pictures and walked back to the taxi. Your Spanish is excellent, I can understand you very well. I have been learning English for almost 2 years. I have visited a language school and now I am learning in the Internet. See you soon.
