短语词组短语innocuous a 无害的;不关痛痒的innocuous drink 无毒的酒innocuous harmless 无害innocuous effluent 无害废水;无害排出物innocuous substance 无害物质;翻译innocuous snakes 无毒的蛇innocuous product 无害产物innocuous drug 良性药物 返回 innocuous