opium
noun [ U ] uk/ˈəʊ.pi.əm/ us/ˈoʊ.pi.əm/
鸦片
a drug made from the seeds of a poppy (= red flower) that is used to control pain or to help people sleep. It can make a person who takes it want more of it and is sometimes used by people as an illegal drug for pleasure
an opium addict 吸鸦片成瘾者