The most difficult subject in your university

I majored in Electrical and Electronic engineering in the university and the most difficult subject was modern control system. The control system is the engineering discipline that applies control theory to design systems with desired behaviors. The practice uses sensors to measure the output performance of the device being controlled and those measurements can be used to give feedback to the input actuators that can make corrections toward desired performance. In my 5th and 6th semester, I got a C in the subject. I really had a hard time understanding what I was taught. In order to challenge again, I took a make-up course in my 7th and 8th semester, but I flunked again. It was awful and frustrating. Looking back, I was not so desperate to master the subject. I just took the course again to get a better grade without making an effort. I learnt that there is no sweet without no sweat.

Good evening to you Sir [이름]! Wow! Your major is really difficult. I saw all of the effort of my brother in order to finish his major. I salute you for always being challenged. Keep it up! With taht attitude of yours, you are going to succeed. I am sure of that! You did a fantastic job again! I noticed that you can compose great sentences now. Keep on writing! See you in class! Teacher Nina   I majored in Electrical and Electronic engineering in the university and the most difficult subject was modern control system. >> Correct! >> OR: I majored in Electrical and Electronic Engineering in the university and the most difficult subject was Modern Control System. >> OR: I took up Electrical and Electronic Engineering in the university and the most difficult subject was Modern Control System. The control system is the engineering discipline that applies control theory to design systems with desired behaviors. >> Correct! The practice uses sensors to measure the output performance of the device being controlled and those measurements can be used to give feedback to the input actuators that can make corrections toward desired performance. >> The practice uses sensors to measure the output performance of the device being controlled and those measurements can be used to give feedback to the input actuators that can make corrections toward the desired performance. In my 5th and 6th semester, I got a C in the subject. >> Correct! >> OR: In my fifth and sixth semester, I got a C grade in that subject. I really had a hard time understanding what I was taught. >> Correct! >> OR: I really had a hard time understanding what has been taught in school. In order to challenge again, I took a make-up course in my 7th and 8th semester, but I flunked again. >> In order to be challenged again, I took a make-up course in my seventh and eigth semester, but I flunked again. It was awful and frustrating. >> Correct! >> OR: It was an awful and frustrating situation for me. Looking back, I was not so desperate to master the subject. >> Correct! I just took the course again to get a better grade without making an effort.  >> Correct! I learnt that there is no sweet without no sweat. >> I learnt that there is no sweet without any sweat.