Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
칼새는 빠르게 하늘을 날며 곤충을 잡습니다.kalsae-neun bbaleuge haneul-eul nalmyeo gonchung-eul jabseubnida.The chimney swift flies quickly in the sky and catches insects.