Proguanil
氯胍
🗣️ 情景例句
After my wife died,
我妻子去世后，
Hope springs eternal (in the human breast).
希望会产生，永远无穷尽。
The system has worked so well, that it has been adopted in other countries too.
由于这种制度行之有效，已被其他国家采纳。