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1·He never speaks unadvisedly about anything.

他从来不轻率地谈论任何事情。《新英汉大辞典》

2·Therefore; it is not to be entered into unadvisedly or lightly but reverently and soberly.

因此，它不是鲁莽而又欠缺考虑的，而是虔诚而又严肃的。