aback
🇺🇸
/əˈbæk/
🇬🇧
/əˈbæk/
Caught off guard or surprised.
I was aback when I heard the unexpected news.
當我聽到這個意外的消息時,我感到驚訝。
With the wind blowing towards the bow of a boat.
The wind shifted, leaving the sailboat aback.
風向改變,使帆船處於被動。