Photothermionic
光热离子的
🗣️ 情景例句
Nice to meet you, Mr. Johnson.
很高兴见到你 Johnson先生。
John is not forty-five yet,is he?
约翰不够45岁,是吗？
The city was equipped with a drainage system, for a great many clay pipes were found beneath the narrow streets.
城里甚至还敷设了排水系统，因为在狭窄的街道底下发现了许许多多陶土制作的排水管道。