Laser transition
[化] 激光跃迁
🧩 词语组成解析
laser
['lezɚ]
n. 激光;激光器，镭射器;
🗣️ 情景例句
I hear that you have a Italy Symphony Orchestra concert on the 15th evening.
听说15号晚上意大利交响乐团要在贵院演奏。
It's very nice of you to come and see me off.
您来给我送行，真是太客气了。
Only the Earth provides ideal conditions, and even here it has taken more than four billion years for plant and animal life to evolve.
只有地球提供理想的条件，而即使在这里，植物和动物的进化也用了40亿年的时间。