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
I don't want to be stuck here the rest of my life.
我可不想一生都憋在这儿。
I'd appreciate it if you would turn out the lights.I'm sleepy.
如果你关灯我将感激你的.我困了。
In the first place, any scientific study requires that there be no preferential weighting of one or another of the items in the series it selects for its consideration.