wèi / le / chá / qīng / zhēn / xiàng / jǐng / fāng / dà / fèi / zhōu / zhāng / de / diào / chá / le / jǐ / gè / yuè

为了查清真相，警方大费周章地调查了几个月。

To uncover the truth, the police went to a lot of trouble investigating for several months.