Germitron
紫外线灯装置
🗣️ 情景例句
Where did you receive your master degree?
你在哪里获得硕士学位的？
What shall I send him for his Christmas?
我要送他什么东西作为圣诞礼物？
That doesn't sound like modern printing.
这听起来不象是现代印刷术呀。