painkiller

n. 止痛药

paedophilia (US pedophilia), paella, pagan, paganism, page, pageant, pageantry, paginate, pagination, pagoda, paid, paid-up, pail, pailful, paillasse, pain, pain-killer, painful, painfully, painfulness, painless, painlessly, painlessness, pains, painstaking, painstakingly, paint, paintbox, paintbrush, painter, painting, paintwork, pair, paired, Paisley, pajamas, Pakistan, Pakistani, pal, palace,