before the present; earlier (used with a measurement of time)
以前;更早(与表示时间长度的词连用)
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he went five minutes ago 他五分钟前走的
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as long ago as 1942 早在1942年以前
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not long ago .不久前。
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数字 + year(s) + ago …年前
真题例句:
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long ago 很久以前
真题例句:
"Middle English