Datum setting
[计] 基准线确定
🧩 词语组成解析
datum
['detəm]
n. 数据，资料;[测]基点，基线，基面;论据，作为论据的事实;[数]已知数;
🗣️ 情景例句
And miles to go before I sleep,
在我就寝前还得赶许多哩路
Show me a liar, and I'll show you a thief.
谎言是做贼的第一步。
A great many goods were sent to the exhibition from various parts of the world.
大量的商品从世界各地运送到了博览会，