如果可能，应追查谣言的源头。If it's possible, track the rumour back to its origin.探险者在中非找到了尼罗河的几处源头.Explorers traced the Nile River to its several headstreams in Central Africa.我们溯河而上,直到源头.We traced the river to its source....
He decided to scour the sink.他决定把水池擦干净。Mercerizing wash waters can be used to prepare scour, chlorine bleach.丝光冲洗水可用作配制洗涤液氯漂白液.Mother made me scour the family silver.母亲让我擦洗家里的银器.You can scour dirty pans by rubbing them w...