addict
1.addict是“使…沉溺”,不是“沉溺于”。“他以前一贯沉溺于赌博”该说He used to addict himself to gambling或He used to be addicted to gambling,不可说He used to addict gambling。习惯上多用被动语态。
2.addict后面接to和名词或to和动名词,不可接不定式,如不可说He used to addict himself to gamble和He used to be addicted to gamble。addicted to drink是可以说的,注意这里的drink是名词,不是动词,习惯上多用被动语态。