A son and his wife and their three children--my grandchildren.
有个儿子, 还有儿媳妇以及他们的三个孩子,我的孙儿女们。
It seems he has a lot of strange ideas.
看起来他好像有很多奇怪意见。
The Native Americans caught and trained them and were then able to use them to carry their goods when they travelled from one camping ground to another.