one and a half month还是months对?

one and a half month还是months对? one and a half month one and a half months 那个正确呀,为什么呀 一个半月的时间英文怎么说 是 one and a months' 还是 one and a half months one month and a half和one and a half month有区别吗? One and a half months 后面谓语用单数还是复数? month and a half one and half还是one and a half one and half 还是 one and a half 有one and half a month这种说法吗? one and a half month用加s吗? one and a half hours 还是hour 是three-month还是 three-months对