noun 下载 🔗分享 日晷,日规 A device measuring the time of day by the position of a shadow cast by a pole or plate (gnomon) upon an engraved series of marks. Examples : "In the park, sundials told the time using the sun's shadow. " 在公园里,人们通过日晷上太阳投下的影子来判断时间。 time device astronomy science technology history 与AI对话词汇游戏阅读练习