spare no pains （to do sth.）不遗余力, 全力以赴
= spare no effort (to do sth.) [ 注意：effort一般不加s ]
go out of one's way (to do sth.)想尽办法，千方百计
leave no stone unturned (to do sth.)千方百计, 想方设法
--可以根据需要选用。
spare no pains （to do sth.）不遗余力, 全力以赴
= spare no effort (to do sth.) [ 注意：effort一般不加s ]
go out of one's way (to do sth.)想尽办法，千方百计
leave no stone unturned (to do sth.)千方百计, 想方设法
--可以根据需要选用。