Undulators
(undulator 的复数) [电] 波纹印码机
🗣️ 情景例句
They'll be at your door within a few minutes.
他们会尽快送到你的门口。
Hello. Could I please speak to Miss Davis?
喂，麻烦你，请戴维斯小姐听电话。
In Miss Gao's class there are forty-six students.
在高老师的班上有四十六个学生。