What is really mysterious about the tongue map is that it was the [______] truth for such a long time, even though it's so easily disproved.
동의어 · officer, functionary, administrator파생어 · officially(공식적으로)
★ 주제문 — S2·S4·S5이(가) 이 문장을 떠받칩니다 — S1을(를) 맥락(으)로 뒷받침