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
While my car is in the shop, they have given me a courtesy car to drive around.
我的车还在修理店时,他们给我一辆替代车用。
We're jumping about in excitement at the discovery.
我们因为这一发现而兴奋得手舞足蹈。
Marine Studio biologists have pointed out that, however intelligent they may be, it is probably a mistake to credit dolphins with any motive of lifesaving.