i slept for ( ) 7 hours last night ,是填less than 还是fewer than

People who sleep ___ six hours a day.是填fewer than还是less than less than two hours 还是fewer than two hours 【】I slept for three hours last night. 分析I slept for eight hours last night 句子成分 I slept only (for five hours) last night more than的反义短语是less than还是less than和fewer than! 少于 英语怎么说?是 fewer than 还是 less than I slept seven hours last night fewer than 与less than? less than 和 fewer than I never sleep for less than nine hours.中文是什么? less hours 还是 fewer hours