1 It‘s hard to tell what the words stand for these days.

很难用言语去描述这些天
这个团队有10个女孩和5个男孩组成
算盘是一种古老的发明
印度人发明了数字系统
我的大多数答案都是准确的是用简单的英语解释下列句子，不是翻译these day is so chaos,i can not use a word to description this scene.there have 10 girls and 5 boys in this teamthe abacus was invented long long time ago ,had a long historyi was right in most times 第四句恕我无能，没法再简单了。