Directivity signal
[电] 择向讯号
🧩 词语组成解析
[计] 指向性, 方向性
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
Maybe she'll call back. She promised.
也许她会打电话回来。她说了。
Please come a litter earlier.
请早一些来。
Not realizing who she was, the assistant was eager to serve her this time.
那个售货员没有认出她是谁，这一回接待她的态度非常殷勤。