Cfel
abbr. Cerenkov free electron laser 切伦科夫自由电子激光器
🗣️ 情景例句
She was playing with the idea of studying abroad.
她有出国留学的念头，但并非很认真。
Courtesy costs nothing.
谦虚恭敬，不用分文。
But neither psychiatric interviews nor objective tests were able to show any effects upon these American sailors.
但是，不管是进行精神病学的调查访问，还是进行客观的测试，都不能显示噪音对这些美国水兵有任何影响。