Mannich base
[化] 曼尼希碱
🧩 词语组成解析
base
[bes]
n. 基础;基地;根据;基数（如十进制的10 和二进制的2）;
vt. 基于;把…建立在;把…放在或设在（基地）;把…置于底座（或基座）上;
adj. 卑鄙的;低级的;贱的，劣的;庶生的;
bas,base 表示”低下,基础”
🗣️ 情景例句
He's an exceptionally fine young man and should be a good husband.
他是一个很好的年轻人将来也会是一位好丈夫的。
Any personal hobbies such as sports, music and collecting stamps never had a place in his life.
任何一种个人的业余爱好，如体育活动，音乐，集邮等等在他的生活中从未有过地位。
The only way that they can preserve their history is to recount it as sagas -- legends handed down from one generation of another.These legends are useful because they can tell us something about migrations of people who lived long ago, but none could wri
他们保存历史的唯一办法是将历史当作传说讲述，由讲述人一代接一代地将史实描述为传奇故事口传下来。