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
Then. How can you prove yourself?
你怎么来证明你自己呢?
Short accounts make long friends.
帐算清,交情深。
Among the different types of bee, it is the honey bee that has most interested scientists because of the language they use to communicate with each other.