[] () a question or problem that is so easy to answer or solve that it needs no thought不假思索便能回答的提问；毫不费神便能解决的问题◆Setting up an email marketing campaign is a real no-brainer.策划电子邮件营销活动是一个毫不费神便能解决的问题。▸ˌno-ˈbrainer
adjective
[] ◆This software is the no-brainer choice for anyone running a network.这款软件是任何经营网络的人最容易作出的不二之选。