一般doing都和长时间的事务有关 过去进行时也是这样。 比如: I was having lunch , my cat jumped onto my table. 这里吃饭是个长时间的动作,而猫跳上桌子是个短时间的动作。 你可以自己去想一下。 比如 打篮球 长时间 如果你昨天打了篮球就需要说 I was playing basketball yesterday. 如果...
一般doing都和长时间的事务有关 过去进行时也是这样。 比如: I was having lunch , my cat jumped onto my table. 这里吃饭是个长时间的动作,而猫跳上桌子是个短时间的动作。 你可以自己去想一下。 比如 打篮球 长时间 如果你昨天打了篮球就需要说 I was playing basketba...
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