go down like a lead balloon

例句：

1. 1. The team's performance was so bad that they went down like a lead balloon.
   球队的表现如此糟糕，以至于他们像铅球一样掉下去了。
2. 2.He fell down like a lead balloon after the heavy rain.
   大雨过后，他像铅球一样掉倒了。
3. 3. The old man fell down like a lead balloon, and his wife rushed to help him up.
   老人像铅球一样掉下去，他的妻子急忙去扶他起来。