speculate　英 ['spekjuleɪt] 美 ['spekjuleɪt]

基本释义：

This is a verb which means to reflect or think.

vt.推测
vi.投机；深思

例句：

1.The doctors speculate that he died of cancer.
医生推测他死于癌症。
2.Can you speculate how such damage might arise?
你能否想出这种伤害是怎样引起的?