相关单词近义词 accumulation 积聚, bottleneck 瓶颈, buildup 集结, excess 超过, logjam 浮木阻塞, surfeit 过食, stockpile 贮藏堆, reserve 保留, log 原木临近词backpack, backlash, backlog order, backlog total, backlog report, backlog demand, backlog control, backlog quantity, backlog document, backlog of cases, backlogging rate, backlog reporting 返回 backlogged