“使沉溺”常见的英文表达是 “addict (someone) to” 或 “indulge (someone) in” （不过“indulge”更侧重于“纵容、使沉迷于享乐”的意味，而“addict to”更直接对应“使沉溺于……上瘾” ）。
Addict (someone) to
His parents worried that video games would addict their son to a virtual world. （他的父母担心电子游戏会使他们的儿子沉溺于虚拟世界。）
Indulge (someone) in （强调纵容沉溺于某种享乐活动）
Don't indulge your child in too much junk food; it's bad for their health. （不要纵容你的孩子吃太多垃圾食品，这对他们的健康有害 。）