Cavilax
2-戊酮、2-丁酮混合物
🗣️ 情景例句
Or at least I think I do.
至少我想我有了答案。
How lucky we are!
我们多么幸运啊！
Indeed, we lack practice and experience nowadays in dealing with primitive conditions.
确实，我们今天缺乏对付原始环境的实践和经验。