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
How much will it cost?
需要多少钱?
Her skirt is behind the chair.
她的裙子在椅子后面。
However, in recent times the old-age pension has only been paid to the poorest people because there has been an increase in the number of people out of work.189