北斗卫星短信功能下放。不支持卫星通话，但支持卫星短信，在这个价位的产品属于相对稀缺的功能。 I hope we can both concur this sentence is Erroneous mainly because "very good" is surely an adjective, and can't be the subject of "is". Precisely the same is correct any time you put "the best" in that spot. It's easy to argue that "the best" could be accurate https://denisb937ivf7.ttblogs.com/profile