Use for to iterate over elements. The two-variable form gives you the index (see Chapter 4):
В Финляндии предупредили об опасном шаге ЕС против России09:28
。业内人士推荐新收录的资料作为进阶阅读
research is good taste in what problems are worth solving.
It's often used to make paper pop-ups. Both origami and kirigami have influenced engineers for many years. These techniques can enable materials to behave in surprising ways – but finding useful applications for them has long been a challenge.
——鄂晓梅委员（内蒙古大学法学院教授）