ruth

US /ruθ/

UK /ru:θ/

A1 初級
prop. n.專有名詞憐憫

影片字幕

棒球簡史 (A Brief History of Baseball)

10:11棒球簡史 (A Brief History of Baseball)

棒球空氣動力學 (Baseball Aerodynamics)

26:58棒球空氣動力學 (Baseball Aerodynamics)

50個常見的錯誤想法 (50 Common Misconceptions)

06:1150個常見的錯誤想法 (50 Common Misconceptions)