spare no efforts用单数还是复数?
spare no efforts用单数还是复数?
spare no efforts
是spare no effort to do还是spare no efforts to do?
spare no efforts什么意思
no people be用单数还是复数
no+名词,单数还是复数?
英语翻译不遗余力做什么事情的英语说法是spare no effort to do 还是 spare no efforts
一个英语词组的疑惑,是to spare no efforts to do还是to spare no effort to
spare no effort 和 spare no efforts的区别
no students后面谓语用单数还是复数
No加名词谓语动词用单数还是复数形式?
no one 作主语,谓语动词用单数还是复数