suddenly
突然地
I feel really tired all of a sudden.我突然间感到真的很累。
I feel really tired all of a sudden.
我突然间感到真的很累。
archaic way of saying all of a sudden
(古)。 同 all of a sudden
Very quickly and unexpectedly; suddenly.
突然地：非常迅速地和突然地；出乎意料地