Parallelosterism
同晶型组与化学成分的关系
🗣️ 情景例句
At today's exercise class...
今天上健身课的时候……
Knowledge will not be aquired without pain and application.
不花力气，不下功夫是得不到知识的。
But of course, he can learn by himself. He has a book and a dictionary.
但当然，他也可以自学。他有书和词典。