Graebe-ullman reaction
[机] 格雷伯-乌尔曼反应
🧩 词语组成解析
n. (Ullman)人名；(捷、瑞典、意)乌尔曼；(英)厄尔曼
🗣️ 情景例句
It is.
是的。
My brother took lessons on the trumpet for nearly ten years.
我的兄弟有将近10年的时间听小号的课了。
Houses -- often three storeys high -- were built of stone.
房子一般有3层楼高，用石块修建。