Fluorosensor
氟传感器
🗣️ 情景例句
Right. And the phone number?
好的。电话是多少？
Words pay no debts.
空言无补。
It was the last day of the year and a large crowd of people had gathered under the Town Hall clock.
那是一年的最后一天，一大群人聚集在市政厅的大钟下面。