Operational efficiency
[经] 经营效率
🧩 词语组成解析
🗣️ 情景例句
Honey, if there were any problems,
亲爱的， 假如有事的话，
Whatever's convenient for you.
你方便就好。
If people don't stop polluting the seas and rivers, there will be no fish left.
如果人们不停止污染海洋和河流的行为，那么，就没有鱼会留下来了。