Four-circle diffractometer
[化] 四圆衍射仪
🧩 词语组成解析
four
[fɔr]
num. 四;四个;第四;
n. 四的;四个一组之物;
n. [光] 衍射计
🗣️ 情景例句
I'm sorry you have to leave so soon.
很遗憾你不能多呆会儿。
She began playing the violin when she was nine.
她从九岁就开始练习小提琴。
Yes, it is.
是啊！