had to
US /hæd tu/
UK /hæd tuː/
情态动词
不得不, 必须
used to express obligation or necessity in the past
示例:
•
I had to leave early because I wasn't feeling well.
我不得不早点离开,因为我感觉不舒服。
•
We had to cancel the trip due to bad weather.
由于天气恶劣,我们不得不取消了旅行。