undecided
[ˌʌndɪˈsaɪdɪd]
adj.
未解决;
未确定;
（天气等）不稳定的;
犹豫不定;
例句:
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His message was aimed at the undecided middle ground of Israeli politics.
他所传达的信息针对的是以色列政局中尚未表态的中间派。
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20 to 40 per cent of the voters are undecided.
20%到40%的选民还犹豫不决。
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He seemed undecided whether to go or stay.
他似乎还没有决定去留。
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But Pekios remains undecided about this year's candidates.
来自VOA
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Undecided But most worrying is the reaction of ordinary Hungarians.
来自BBC
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The Copenhagen agreement leaves lots of details undecided.
来自VOA