not certain or fixed; provisional
未决的,未定的;暂时性的
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a tentative conclusion .暂时的结论。
done without confidence; hesitant
试探(性)的;犹豫的,迟疑不决的
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he eventually tried a few tentative steps round his hospital room .他终于绕病房试探性地走了几步。
"late 16th cent.: from medieval Latin