Which one out of these two sentences is the most natural? “我们一起去海滩吧！” or “让我们一起去海滩”???
*** I asked a native speaker about this the other day and he told me that using "让" sounds "too serious". But then today when I asked another native speaker about this, he told me that it'd be just natural and fine to use "让" to express "Let's...". Could someone please explain to me about the usage of 让? Is it really natural to use 让 to invite/persuade other to do something?
让我们... means let us... So, yes, it is a way to give suggestion. Of course you can use it but we do not use it as frequently as 我们一起去海滩吧！normally in verbal. Though they are both verbal ways, I will choose the first sentence. You can just think it omit 让.