un·til

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【释义】：

prep．直到…为止：He worked with us until six o’clock．他和我们一直干到六点钟．We did not get anynews about it until Sunday．直到星期日我们才得到消息．

－conj．直到…为止：They continued their struggle until the fire was extinguished．他们一直战斗到把火扑灭．We won’t leave the battlefield until we’ve thoroughly wiped out the enemy．不彻底消灭敌人，我们决不下战场．