avant courier
US /əˌvɑːnt ˈkʊriər/
UK /əˌvɒnt ˈkʊriər/
名词
先驱, 先兆
a forerunner or precursor
示例:
•
The first signs of spring are the avant courier of warmer weather.
春天的最初迹象是温暖天气的先兆。
•
His early experiments were the avant courier of modern robotics.
他的早期实验是现代机器人技术的先驱。