吃饭时,6岁的儿子莫凯看见有一盘黑不溜秋的东西,夹了几条吮了起来,觉得味道还不错,便问道:“这是什么呀?”妈妈见儿子主动发问,高兴极了,连忙说:“这是海带,生长在大海里的,是一种海草,可是营养非常丰富,含有大量的钙质,人经常吃能长骨头,另外,它还含有各种其他稀有物质,比如铁……”还没等母亲说完,莫凯便嚷道:“知道了,知道了,我——知道了！”说完,儿子又夹了几条,一边摇头晃脑 When eating, 6-year-old son Mokai saw a plate of black not slippery autumn thing, caught a few sucking up, I feel good taste, then asked: “What is this?” Mom saw his son take the initiative to ask, very happy, Quickly said: “This is the kelp, is growing in the sea, is a kind of seaweed, but nutrition is very rich, contains a lot of calcium, people often eat long bones, in addition, it also contains a variety of other rare substances, such as iron ... ... ”Not until the mother finished, Mok Kai shouted:“ I got it, I got it! ”Finished, my son caught a few, shaking his head and shaking brain