Efficient operation
[计] 有效操作
🧩 词语组成解析
efficient
[i'fiʃənt]
adj. 有效率的;（直接）生效的;能干的;（因省钱、省时或省力等而）收效大的;
🗣️ 情景例句
That's a little more than we had planned.
这比我们计划的多了一些。
How much does she eat?
她要吃多少？
How much did you pay for all these things? asked her mother.
“买所有这些东西你付了多少钱？”她妈妈问。