dubious

adj. /ˈduːbiəs/ C1

可疑的；犹豫不决的

Feeling doubt or not completely honest or safe.

仙境例句

Alice felt dubious about eating a mushroom, since no one had ever told her it was safe.

爱丽丝对吃蘑菇心里没底，因为从没有人告诉过她这样安全。