opal

US /ˈoʊpl/

UK /ˈəʊpl/

B2 中高級
n.名詞蛋白石;乳白色玻璃;貓眼石
The princess wore a tiara adorned with blue opal stones

影片字幕

沒有動力?如何真正享受學習 (Not motivated? How to actually ENJOY studying)

10:35沒有動力?如何真正享受學習 (Not motivated? How to actually ENJOY studying)