learned是什么意思?

来源:百度知道 编辑:UC知道 时间:2024/06/01 12:31:11
Psychologists have discovered that some of the negative effects of addictive drugs, including withdrawl symptoms, are learned.

learned在这句话里是什么意思?

你这样看就明白了
Psychologists have discovered that some of the negative effects of addictive drugs are learned, including withdrawl symptoms
意思是意识到毒品的一些负面作用

得知

被得知

指已被获知,知晓,研究