表示不可能的几个说法 impossible impractical unattainable

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impossible: something that is impossible cannot happen or be done: It’s impossible to get a taxi around here. | At times, finding a job felt like an impossible task.

impractical: something that is impractical is too expensive, takes too much time, is too difficult etc and therefore it is not sensible to try to do it: It’s a nice idea, but it’s totally impractical. | We cannot all just stop using our cars - that would be completely impractical. | an impractical suggestion

out of the question: used when saying that something is completely impossible, especially because it is not allowed: It’s out of the question for you to go alone.

there’s no way:  informal. used when saying that you think something is completely impossible: There’s no way we can get to the airport in less than an hour.

inconceivable: impossible to imagine or believe: It seemed inconceivable that there could be an end to the fighting in Northern Ireland.

unthinkable: impossible to imagine or believe - used especially about something that seems very shocking to people: In those days it was unthinkable for a lady to work outside the home.

unattainable: impossible to achieve: an unattainable goal | Victory seemed unattainable.

it can’t be done: spoken. used when saying very definitely that something is impossible: I’m afraid it can’t be done.