Photonphysics
光子物理学
🗣️ 情景例句
Especially with his teething.
特别是他现在开始长牙。
To type a term paper
用打字机打期末报告
We had spent several days in a small town and visited a number of old churches in the vicinity.
我们在一座小镇上逗留了几天，参观了附近的许多古老的教堂。