姐姐有一个三岁的。
My older sister has a three-year-old child.
今天姐姐要工作，我帮她。
Today my sister had to work, so I helped her take care of the child.
上午我给他，他吃了很多。
In the morning I cooked for him, and he ate a lot.
下午我们去。
In the afternoon we went to the park to play.
晚上他很，很快就了。
In the evening he was very tired and fell asleep quickly.
，可是也很。
Taking care of a child is interesting, but also very tiring.