N-signal
[電] n訊號
?? 詞語組成解析
signal
['s?gnl]
n. 信號，暗號;預兆，征象;動機;導火線;
vt. 向…發信號;用動作（手勢）示意;以信號告知;
vi. 發信號;
adj. 顯著的，優越的;暗號的，作信號用的;
sign記號，信號+al表名詞 → 信號
??? 情景例句
Uh-hum.
嗯哼。
He skinned his knee.
他擦破了膝蓋的皮。
The assistant who served her did not like the way she was dressed.
接待她的售貨員不喜歡她的那副打扮，