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英语从属连词意义的潜移是指从属连词在使用中发生了意义变化。请看下面句子: 1 tell you better get out of here before I break you in half. 句中的“before”不表示“在……之前”,而表示“否则”之意。 They didn’t attempt to reach the North Pole before a strong base had been established in the Arctic. “before”表示“直到……才”。