harbinger

名词 harbinger:

1. an indication of the approach of something or someone
   同义词：forerunner, herald, precursor

动词 harbinger:

1. foreshadow or presage
   同义词：announce, annunciate, foretell, herald

1. Exert thy voice, sweet harbinger of spring!
   敞开嗓门吧，春天甜美的使者！
2. The cuckoo is a harbinger of spring.
   布谷鸟预告春天的来临。
3. The crowing of the cock is a harbinger of dawn.
   鸡啼报晓。

har.bin.ger

n.（名词）
One that indicates or foreshadows what is to come; a forerunner.
预言者：指明或预示即将发生的事的人；先驱
v.tr.（及物动词）
har.bin.gered,har.bin.ger.ing,har.bin.gers
To signal the approach of; presage.
预报，预示：用信号示意（人或事）的临近；预示

来源：
Middle English herbengar [person sent ahead to arrange lodgings]
中古英语 herbengar [被派去提前安排住宿的人]
from Old French herbergeor
源自 古法语 herbergeor
from herbergier [to provide lodging for]
源自 herbergier [提供住宿]
from herberge [lodging]
源自 herberge [住所]
[of Germanic origin] * see koro-
[源于日耳曼语] *参见 koro-