忽然的用法和樣例：
例句
-
起風(fēng)了，雨點(diǎn)忽然落下來(lái)。
A wind arose, and rain drops began falling all at once. -
那男孩忽然哭了起來(lái)。
The boy began crying all of a sudden. -
我一轉身，忽然看見(jiàn)了湯姆。
Suddenly I turned and caught sight of Tom. -
我忽然想起一個(gè)好主意。
A good idea suddenly occurred to me. -
那水手忽然看到一名海盜跳上了甲板。
The sailor suddenly saw a pirate jumping onto the deck.
