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
and Mom has all these committees she's on.
妈妈又有那么多的小组会议要开。
Many new ideas are discovered during college years.
大部分崭新的观念都产生于大学时代。
Though people have often laughed at stories told by seamen, it is now known that many of these 'monsters' which have at times been sighted are simply strange fish.