backfat背膘
backn.后面;背脊;靠背;后背;后卫vt.支持;后退adv.向后地adj.向后的;后面的;偏远的;过时的;积欠的
backplane slot底板插槽
back financing不可追溯的资金供应
back flashover反向闪络,反击雷闪络
back connected后部连接的
back to nature回归自然
back-end man截煤机辅助工
back arc basin弧后盆地
back-up item备分项目,备用项目
back-putting背向推掷
"The increase in tax was backdated to January"