nettle

n. 荨麻，v. 烦忧，激恼

nerve-racking, nerveless, nervelessly, nervous, nervous breakdown, nervous system, nervously, nervousness, nervy, nest, nest-egg, nesting home, nestle, nestling, net, net (also nett), netball, nether, nethermost, netting, nettle-rash, network, neur(o)-, neural, neuralgia, neuralgic, neurasthenia, neurasthenic, neuritis, neurological, neurologist, neurology, neuron, neurosis, neurotic, neurotically, neurotoxic, neuter, neutral, neutrality,