用作定语
▲～+n.
We demand a definite answer.我们要求明确的答案。
It was a definite mistake for him to have gone alone.他独自前去是一个明显的错误。
His school work was not up to the definite standard.他的学业成绩没有达到规定的标准。
用作表语
▲S+be+～
The explanation he gave is not definite enough.他的解释不够明确。
I had no trouble finding your house because your directions were definite.我很容易就找到了你家,因为你把如何走法说得很清楚了。
▲S+be+～+prep.-phrase
The doctor is quite definite about Tom having measles.医生十分肯定汤姆得了麻疹。
She was very definite about having seen him.她见过他,这一点她很肯定。
It was very definite in answer.那个答复很明确。
▲S+be+～+that-clause
I am definite that I put key on the table.我肯定是把钥匙放在桌子上了。
▲It is/was+～+that-clause
Its definite he will come to help us.他肯定会来帮助我们。
Is it definite that he is not coming?他确定不来吗?
