Determeter
(往复式)去污试验仪
🗣️ 情景例句
Merry Christmas, Mrs. Tom!
汤姆夫人，圣诞快乐！
I wrote to him last Friday.
我上个星期五写信给他。
Mrs.Richards realized that it must be the man from the Electricity Board who had come to read the metre.
理查兹夫人这才想到一定是供电局来人查电表了。