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
ADJ（形容词） Something that is innocuous is not at all harmful or offensive. 无害的; 无意冒犯的 [正式]
Both mushrooms look innocuous but are in fact deadly.
两个蘑菇看起来都无害，但实际上却能致命。