Polyfon
木质磺酸钠盐
🗣️ 情景例句
Western countries have evry strict visa requirements.
在西方国家有严格的签证要求。
Virtue is the only true nobility.
唯有美德是真正高贵的。
Officials from Greenwich Observatory have the clock checked twice a day.
格林尼治天文台的官员们每天两次派人矫正此钟。