as fast as (one's) legs can carry (one) 成语
set (one) back
cost How much did your new suit set you back?
give (one) up for|give|give one up for|give up|giv
v. phr. To abandon hope for someone or something.
After Larry had not returned to base camp for three nights, his fellow mountain climbers gave him up for dead.
keep (one) posted|keep one posted|keep posted
v. phr. To receive current information; inform oneself.
My associates phoned me every day and kept me posted on new developments in our business.as fast as (one's) legs can backpack (one)
As fast as one can run away. You charge to get abroad from actuality as fast as your legs can backpack you—it's too dangerous!Learn more: can, carry, fast, legas fast as your legs can ˈcarry you
as bound as you can: When he heard the badge sirens, he ran off as fast as his legs could backpack him.Learn more: can, carry, fast, leg