In the old days, antitrust laws kept monopolies from buying potential competitors.
过去,反垄断法禁止垄断大户收购其潜在竞争者。
2.range 范围
The article covered a wide range of topics.
这篇文章讨论了一系列广泛的论题。
3.exchange 交换
Shares soared on the New York stock exchange.
纽约证券交易所股票暴涨。
4.vsimilar 相似的
They have uncannily similar voices.
他们有着出奇相似的嗓音。