position of sample
样品位置
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The organisers give a country's position as being ranked between certain positions because it says with a sample of students it is not always possible to state a comparative ranking with 100% accuracy.
BBC: RELATED BBC SITES
应用推荐
模块上移
模块下移
不移动