Polypetipe
缩多氨酸
🗣️ 情景例句
What's the capital city of France?
法国的首都是哪里？
There is nothing which has not been bitter before being ripe.
事情在成功前没有不艰苦的。
and are capable of a considerable degree of personal affection.
而且会对主人产生相当深厚的私人感情。