sundial
🇺🇸
/ˈsʌndaɪəl/
🇬🇧
/ˈsʌndaɪəl/
A tool used outside to tell time by the sun's position. It has a stick that casts a shadow on a plate with hour marks.
He learned to tell the time by looking at the shadow on the sundial.
他學會了透過觀察日晷上的影子來辨認時間。