whistle

怎麼用 whistle？實際例句

• He whistled a tune as he walked down the street.

  🇺🇸

  他邊走邊哼著一首曲子。

• The referee blew the whistle to signal the end of the game.

  🇺🇸

  裁判吹響哨聲，標誌比賽結束。