单词 | after; since |
释义 | after; since 均可作介词或连词,表示时间。 ❖ after后可带“过去时间点”或“一段时间”,意为“在…之后”,与过去时连用。如:He went to college after he finished middle school. 读完中学后他去上了大学。 ◇ He came back after five days. 5天后他回来了。 ❖ since后只能带“过去时间点”,意为“自从…”,与完成时连用。如:He has wrote 5 novels since 2006. 自从2006 年来,他已经写了5 部小说。但“it's + 一段时间 + since ...”中一般用is,很少用has been(多见于美语)。如:It's 3 years since he left. 他离开已经有3 年了。 |
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