sundial

sundial 英[ˈsʌndaɪəl] 美[ˈsʌnˌdaɪəl]
n. 日晷，日规;
[例句]Humans have used many devices to measure time. The sundial was one of the earliest and simplest.
人类使用了很多的装置去计量时间。日晷是其中最早和最简单的。
[其他] 复数：sundials