certainty
n. 确实，确定性；确实的事，必然的事
复数 certainties
例句
A general election became a certainty last week.
普选上周已成必然。
《柯林斯英汉双解大词典》
Such attitudes are valueless unless they reflect inner cognition and certainty.
这种态度如果不能反映内心的认知和确定性就毫无价值。
Their suspicions hardened into certainty.
他们由怀疑变成肯定。
《牛津词典》
