/ənˈtɪl ||; ənˈtɪl/(also
till)
prep conj up to the time or the event mentioned 直至…为止；在…之前:
The restaurant is open until midnight. 这家餐馆营业到午夜才关门。Until that moment she had been happy. 在那一刻之前，她一直很开心的。She waited until he had finished. 她一直等到他完成为止。We won't leave until the police get here (= we won't leave before they come). 在警察到来之前我们不会离开。 ☞We can use until in both formal and informal English. Till is more common in informal English and is not usually used at the beginning of a sentence. Make sure that you only use till / until to talk about a time. We use as far as to talk about distance I walked as far as the shops. We use up to to talk about a number You can take up to 20 kilos of luggage. until可以用于正式与非正式场合。在非正式场合中till较常用，而且通常不用于句子的开端。till和until只用于时间方面，表示距离要用as far as：I walked as far as the shops.我一直走到商店那里。up to用于数字方面：You can take up to 20 kilos of luggage.你最多可以携带20公斤行李。