Fluostannous acid
[化] 氟亚锡酸
🧩 词语组成解析
🗣️ 情景例句
and make sure that it is in good condition
确定它状 良好
So many countries, so many customs.
一个国家有一个国家的风俗。
Ok. We can stop here for a time.
“那好吧！我们可以在这里停一下。”