The sound system of the official Mandarin language is relatively simple to master compared with oth
问题描述：
The sound system of the official Mandarin language is relatively simple to master compared with oth
翻译
答
oth 超视距；超远程电离层的（over-the-horizon）；光传送体系（Optical Transport Hierarchy）；经过伪装地面的目标和、、、相比较,普通话的发音体系还是相对简单的.（oth是不是打错了?应该是others吧?如果是这样就...