单词	look-back option
释义	look-back option 回顾期权
随便看	first in,last out first-in last-out first-in last-out, FILO first in last out list first-in last-out list first-in-last-out list first in last out principle first-in-last-out principle first in last out stack first-in last-out stack first-in-last-out stack first-in / last-out stack First in line for blame is Mr Abe first in list first inner apical nervure first inning first-inning first-innings first in not used first out first-in-not-used-first-out First inoculation detection first-in officer first-in officerat an incident First in order of birth First in order of birth; born first