sudden
US /ˈsʌd.ən/
UK /ˈsʌd.ən/

1.
突然的, 忽然的
occurring or done quickly and unexpectedly or without warning
:
•
There was a sudden change in the weather.
天氣突然變了。
•
He made a sudden decision to quit his job.
他突然決定辭職。
突然的, 忽然的
occurring or done quickly and unexpectedly or without warning