落后，落后于
ph.
1. The production of the factory has been dropping behind in the last few months.
那家工厂的生产量近几个月来一直在下降。
1. 落后：drop ball 下坠球 | drop behind 落后 | drop by drop 一滴一滴地
2. 落 伍, 落后, 落在...之后：drop back 退后, 后撤 恢复(旧习惯等)(into) | drop behind 落 伍, 落后, 落在...之后 | drop by [美]顺便访问一下
3. 落后, 落伍：drop bar grizzly 落棒筛. | drop behind 落后, 落伍. | drop bolt 埋头螺 栓.
4. 落伍,落后：drop back 推后,后撤,恢复 | drop behind 落伍,落后 | drop down 卧倒,顺着...向下移动
verb
1. to lag or linger behind
e.g. But in so many other areas we still are dragging