爷爷山上的核桃快熟了，爸爸叫了妈妈的几个同事去摘核桃。你一定会问，为什么不等核桃熟了再摘呢？那是因为，去年摘得晚了，都被别人偷了。
The walnut on Grandpa's mountain is about to ripen. My father asked some of my mother's colleagues to pick the walnut. You must ask, why don't you pick the walnuts before they are ripe? That's because it was late last year and someone else stole it.
今天上午，刮着风，太阳却火辣辣的，我们每个人都很热。我的伯伯爬上树，把整棵树上的核桃都在了下来，我在地上捡，两个叔叔一会儿去摘核桃，一会儿去捡核桃，爸爸也用专门用来钩核桃的 工具摘核桃。相比之下，就属我最轻松了，可还是汗流浃背。
This morning, the wind blows, but the sun is hot. We are all very hot. My uncle climbed up the tree and brought down all the walnuts on the whole tree. I picked them on the ground. My two uncles picked walnuts in a moment, and picked them in a moment. My father also picked walnuts with tools specially used for hooking walnuts. By contrast, I am the most relaxed, but still sweaty.
摘核桃虽然很累、很热，但吃到核桃的时候就已经忘了，这就是先苦后甘。
Although picking walnuts is very tired and hot, I forget when I eat walnuts, that is, first bitter, then sweet.
