Feedback action
[电] 反馈作用
🧩 词语组成解析
action
['ækʃən]
n. 行动，活动;功能，作用;手段;[法]诉讼;
🗣️ 情景例句
What about the bet?
那打赌的事呢？
He has a telephone directory.
他有一本电话簿。
It is much cheaper to post or email a long report than to fax it.
邮寄或电子邮递一封长篇报告比传真要便宜得多。