speculate

v. /ˈspekjuleɪt/ C1

推测；投机

To guess possible answers without having enough information.

仙境例句

Alice speculated that the hookah smoke made the Caterpillar so sleepy and slow.

爱丽丝猜想，是水烟让毛毛虫这么懒洋洋、慢吞吞的。