In the film, Sellers plays a clumsy, clueless French policeman.在这部电影里, 塞勒斯扮演一位笨拙无知的法国警察。

I am clueless about computers.我对计算机一窍不通。

He is clueless as to what to do and hopes that someone else might provide him with a solution.他不知道该怎么办, 希望别人给他提供解决办法。