certainty
/ˈsɝtənti/
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n. 確定；必然的事
- Weather forecasts can never say with certainty whether it will rain at a particular place and time. 天氣預報永遠無法確定地說出某個時間、地點會不會下雨。
其他意思
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n. 確定, 確實的事
Certainty is the state of being definite or of having no doubts at all about something.
- I have told them with absolute certainty there'll be no change of policy
也出現在：
字根
cert 確定的
cert + ain + ty確定的 + 形容詞；人 + 名詞