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
Yes. Very much.
是的, 非常爱。
Judge not a book by its cover.
评定一本书,不能凭封面。
In the organization of industrial life the influence of the factory upon the physiological and mental state of the workers has been completely neglected.