短语词组短语fitful l 一阵阵的fitful rain 一阵阵雨Fitful Yet 寡欢fitful sector 适应区fitful sleep 时睡时醒的睡眠Fitful bioreactor 间歇反应器法fitful moving 间歇运动a fitful pain 一阵阵心痛a fitful wind 方向不定的风 返回 fitful