어학

https://uk.babbel.com/

Babbel

https://livexp.com/

LiveXP

https://www.classgap.com/en

classgap

https://preply.com/ko/

프레플리

https://www.lingoda.com/en/

Lingoda

https://www.coursera.org/

코세라

https://www.verbling.com/ko

버블링

https://www.memrise.com/ko/

멤라이즈

https://ko.englishcentral.com/browse/videos

잉글리쉬 센트럴

https://www.busuu.com/ko

부수