Xanthonation
黄原酸化作用
🗣️ 情景例句
Well begun, half done.
良好的开始，就是成功了一半。
What's the capital of your country?
贵国首都是哪儿？
A girl came in and put an envelope on his desk.
一个姑娘走了进来，把一个信封放在了他桌上。