Wf
abbr. 滤水器（Water Filter）；非同一型号的铅字（wrong font）
🗣️ 情景例句
Are you a citizen of the People's Republic of China?
你是中华人民共和国的公民吗？
They exchange happy glances.
他们幸福地互视着。
When it has been decided where we are going to drill, we put up at the surface an oil derrick.
当确定钻孔地点后，我们就在那里竖起一个井架。