括号里的两个选哪个,为什么?he gained a (two-third/two-thirds)majority in the election
问题描述：
括号里的两个选哪个,为什么?he gained a (two-third/two-thirds)majority in the election
我书上给的答案是two-thirds
答
应该是two-third
只要有“-”的符号
后面的词就没有“s”
比如：a two-year-old boy