It needs to strip the text, break it into an array, and count the occurrences of each word.
它需要划分文本，分解为一个数组，并计算每个单词的出现次数。
2
At FIRST it looked possible that the break-out by tens of thousands of Palestinians bottled up in the Gaza Strip would be a joyful but brief blip.
成千上万被困在在加沙地带的巴勒斯坦人爆发了，起初，这看起来可能是一个可喜而短暂的标志。
3
They were found next to bones, and it was clear that these stones had been shaped into butchering tools to strip meat and break into the bones of animals killed on the savannah.