Signal symptom
[医] 先兆症状
🧩 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
He speaks French and English with equal ease.
他说法语和英语都一样自如。
I think it's going to be a nice day.
我想今天会是一个好天。
I was on the march.
我参加了游行。