n. 信號(hào),暗號(hào);預(yù)兆,征象;動(dòng)機(jī);導(dǎo)火線;
vt. 向…發(fā)信號(hào);用動(dòng)作(手勢(shì))示意;以信號(hào)告知;
vi. 發(fā)信號(hào);
adj. 顯著的,優(yōu)越的;暗號(hào)的,作信號(hào)用的;
sign記號(hào),信號(hào)+al表名詞 → 信號(hào)
??? 情景例句
May I ask for a wake-up call tomorrow morning?
明早我可以要求晨叫服務(wù)嗎?
Change the subject.
說(shuō)點(diǎn)別的吧!
With the medicine box under her arm, Miss Zhao hurried off to look after the man.