——严琦代表（全国工商联餐饮业委员会主席）
Никита Абрамов (Редактор отдела «Россия»)。业内人士推荐PDF资料作为进阶阅读
，这一点在新收录的资料中也有详细论述
Perhaps the most notable feature here, however, is the battery life. Nothing says these headphones will last over five days on a single charge. That's not five days of regular use, working out to several hours each day or whatever. It claims 135 hours of life per charge. As a comparison, Sony's WH-CH520 headphones, which are praised for great battery life, last around 50 hours.，更多细节参见新收录的资料
Roman numerals: glyph reuse by design