backing

帮助，支持

【例】With the backing of the government, our development plan has been successfully carried out.

由于政府的支持，我们的发展计划已顺利实施。

backlog

积压的工作，积压而未交付的订货

【例】We have large number of backlogs to be filled during the next few months.

我们有许多积压的订单，要在今后几个月内交货。

bad

坏的，不好的

【例】The company incurred heavy losses due to bad management.

该公司由于管理不善而招致严重的损失。