sailboard
🇺🇸
/ˈseɪlbɔːrd/
🇬🇧
/ˈseɪlbɔːd/
A board with a sail attached, used for riding on water.
He balanced skillfully on the sailboard as the wind propelled him across the lake.
風が彼を湖の向こうへと押し進める中、彼は巧みにセイルボードの上でバランスを取った。