Return signal
[计] 返回信号, 反馈信号
🧩 词语组成解析
signal
['sɪgnl]
n. 信号，暗号;预兆，征象;动机;导火线;
vt. 向…发信号;用动作（手势）示意;以信号告知;
vi. 发信号;
adj. 显著的，优越的;暗号的，作信号用的;
sign记号，信号+al表名词 → 信号
🗣️ 情景例句
until I have a chance to talk with you about it.
除非我有机会跟你谈过。
I'm afraid all my efforts were in vain.
我担心我的努力全白费了。
Then Von Frisch moved the dish to the east of the hive and waited for a marked bee to feed.
然后，冯·弗里施把碟子移到蜂箱的西边，等待有标记的蜜蜂来吃。