if (head === null) return [];
（一）未依法对许可申请进行审批或者核准的；
。谷歌浏览器【最新下载地址】对此有专业解读
Charging case dimensions: 50 x 57.2 x 24.5mm，这一点在WPS官方版本下载中也有详细论述
The latest earbuds are said to offer improved audio quality and active noise cancellation (ANC), with an ambient sound mode, adaptive EQ and adaptive ANC. On Buds 4 Pro, there's a siren detection feature that enables ambient sound to let you hear things like alarms or emergency vehicle warnings.