as it s your last的意思

因為這是你的最后一次

stick to your last───堅持到最后

to try your best───盡你所能

as long as your arm───和你的手臂一樣長

at last at long last───終于終于

at long last───最后

bite your lip───咬你的嘴唇

land in your lap───坐在你的大腿上

why you should treat every day as if it were your last.───所以才要把每天都當成生命的最后一天。