Correct

蓦然

/ mòrán /
Strokes

Definition

suddenly/sudden

Example

As an Adverb

all of a sudden; suddenly; abruptly

1
rán
蓦然
kuángfēng
狂风
zuò
大作
  
,
qīngpén
大雨倾盆
  

Suddenly a high wind sprang up and the rain started pouring down.

2
rán
蓦然

suddenly remember