Artificial intelligent assistant

soporific

soporific
/ˌsɔpəˈrɪfɪk; ˌsɑpə`rɪfɪk/ n, adj (substance, medicine, drink, etc) causing sleep 催眠的(物质、 药剂、 饮料等): a soporific drug 安眠药
    (fig 比喻) a soporificspeech 使听者欲睡的讲话.

牛津英汉双解词典

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