how do you undersdand "once the sands have run out of a pers

how do you undersdand "once the sands have run out of a pers How do you understand "Once the sands have run out of a pers 1.How do you understand “ Once the sands have run out of a p how do you understand:"once the sands have run out of one's 中文翻译一下Once the sands have run out of a person's hourglass,th Once the sands run out of the hourglass,time can not be repl one the sands have out of a person's hourglass,they cannot b Once run out of the patient , just throw it How often do you eat out?It depends,but usually once a week. do keep out of the rain if you don't have a raincoat run out of the You never run out of things to say,do you