Concentration of production
[经] 生产集中
🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
🗣️ 情景例句
What a mess!
太乱了！
If it hadn't been for your help, we would never have finished it.
如果没有你的帮助，我们永远完不成任务。
The next day he walked through the wood again.
第二天，他再次穿过树林。