spare no effort effort要加s吗

spare no effort effort要加s吗 spare no effort to的effort要否加s? make every effort 和spare no effort意思一样吗? spare no effect还是spare no effort? spare no effort to do sth 是固定用法吗? make every/devote every/spare no +effort? Ishod spare no effort to love effort什么时候加s spare no pains和spare no effort有什么区别? 求spare no effort和spare no expense造句 spare no effort 和 spare no efforts的区别 We must spare no effort to do it.