on the beam的意思

汉语翻译

例句：

1. Most rock groups lose popularity very quickly, but the Beatles stayed on the beam for many years.大部分摇滚乐团都很快就不受人欢迎了，但是甲壳虫乐队却多年以来一直博得人们的青睐。
2. His answer was right on the beam.他的答案完全正确。