近义词是abruptly，例如：

1.She left the room abruptly without explanation.她未作解释就突然离开了房间。

2.The bus stopped abruptly, nearly tipping me out of my seat.公共汽车突然刹车，差点儿把我从座位上甩出去。

3.Abruptly the group ahead of us came to a standstill我们前面的小组突然停了下来。

近义词：Sharp

例句

He suddenly punched me in the stomach.

他突然朝我肚子猛击一拳。

2

I suddenly heard a scream from a woman.

我突然听到一个女人传来一声惨叫。

3

The train suddenly speeds up.

火车突然加速了。

4

I suddenly realized what I'd said, but it was too late.

我突然意识到自己说了什么 不过为时已晚

suddenly近义词为：abruptly。