Germitron
紫外线灯装置
🗣️ 情景例句
Producing more movies, publishing books, and so on.
拍摄更多的电影，出版更多的书籍以与他们交流。
Kill two birds with one stone.
一举两得。
The development of films with sound became a problem for Chaplin.
有声电影的研制对卓别林来说就成了问题。