Cfels
(cfel 的复数) abbr. Cerenkov free electron laser 切伦科夫自由电子激光器
🗣️ 情景例句
She's been having a fling.
她曾经风流放纵过。
That important man is very unassuming in his manner.
那个要人彬彬有礼，是一位毫不摆架子的人。
When my husband was going into the dining room this morning, he dropped some coins on the floor.
今天早晨我丈夫走进饭厅时，把一些硬币掉在地上了。