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
If you aren't busy today, how about lunch?
如果你今天有空的话,吃一顿午饭如何?
A bat is hanging.
蝙蝠倒悬着。
I even went out at midnight with a torch and noted with satisfaction (and surprise) that the ants were still swarming around the sticky tape without being able to do anything about it.