s. experiencing or showing fear
s. extremely distressing
s. timid by nature or revealing timidity
a. 可怕的, 恐怕的, 担心的
1. She was fearful of speaking in front of a large crowd.
她害怕在大庭广众面前发言。
2. The dog looked fearful when it heard the loud noise.
当狗听到大声的噪音时，看起来很害怕。
3. He felt fearful about the upcoming exam.
他对即将到来的考试感到害怕。