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
Mind your manners.
注意你的行为举止。
Congratulations on your having a baby.
我恭喜你生了个宝宝。
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.