Mr. Smith said he would attend the meeting if he had time.
史密斯先生说如果他有时间就来参加会议。
If he had time, he would help us.
如果他有时间,他会帮我们。
If he had time, he would help you.
现在他如果有时间,是会帮你写的。
Calhoun said that for a long time he had believed that the dispute over slavery -- if not settled -- would end in disunion.
VOA: special.2009.03.26
If you see the pictures of Mike, especially here well before he had his surgery at the time he was about 30 skiing downhill.
如果看了迈克的照片,特别是这张他接受手术前的照片,就在他接受手术的时候,即他大约30岁左右时,他还在从事高山滑雪。
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