Usages of üstelik
Üstelik toplantı odası doluydu, ayakta kaldık.
Moreover, the meeting room was full; we had to stand.
Üstelik rüzgar doğudan esiyordu, kapı sürekli açılıyordu.
Moreover, the wind was blowing from the east and the door kept opening.
Elon.io is an online learning platform
We have an entire course teaching Turkish grammar and vocabulary.