(1)極めて慎重に
(2)恐怖で
(3)シャイな、臆病な、または内気な方法で
(4)in fear,
(5)in a shy or timid or bashful manner
さらに詳しく
(4)in a shy or timid or bashful manner; "he smiled shyly"
(5)in a shy or timid or bashful manner; "he smiled shyly"