There is something wrong with this sentence! Firstly, it is divided into: (1) after-sales service of household appliances (2) service industry (3) an endless career (4) study (5); Do you understand this time? This is not a complete sentence at all. They are all isolated words, and even the literal meaning is hard to round you into a sentence. So many things are missing! If you have a resume with this title, you'd better tear it up and show your ability in your own language in front of the interviewer!