| 单词 | know/say for certain |
| 释义 | know/say for certain know/say for certain C1 to know or say something without doubt: » I don't know for certain if she's coming.» I can't say for certain how long I'll be there.Thesaurus+: ↑Confidence and self-assurance , ↑Showing arrogance and conceitThesaurus+: ↑Certainty , ↑Confidence and self-assuranceMain Entry: ↑certain |
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