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

Examples
with 혈암.

  • 이 지역의 혈암은 석유를 포함하고 있다.I jiyeog-ui hyeol-am-eun seog-yu-reul poham-hago itda.The shale in this area contains oil.