●go ˌdown like a lead balˈloon (informal) be very unsuccessful; not be accepted by people像铅气球一样下落;非常不成功;毫无效果◆As you can imagine, the new proposals went down like a lead balloon, so we’ll have to think again.可能你会料到,新的提案根本不管用,所以我们必须重新考虑。OPPgo down a bombNOTELead is a heavy soft grey metal (symbol = Pb). * lead 指金属铅(化学符号为 Pb),它是一种银白色重金属,质地柔软。