Reactology
反应学
🗣️ 情景例句
I'm still learning.
我还在学习当中。
How much is the telephone bill a month?
每个月电话费要多少钱？
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。