won't 是 will not的所写,表示一般将来时的否定形式;
didn't 是did not的缩写,表示一般过去时的否定形式;
两者表达的时态不同;
比如:I won't come tomorrow.我明天不会来.
I didn't come yesterday.我昨天没有来.
won't 是 will not的所写,表示一般将来时的否定形式;
didn't 是did not的缩写,表示一般过去时的否定形式;
两者表达的时态不同;
比如:I won't come tomorrow.我明天不会来.
I didn't come yesterday.我昨天没有来.