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This leaves still to be discussed the other category of tools: grammar. Russian linguist Roman Jakobson famously summarized grammatical diversity by saying that languages “differ essentially in what they must convey and not in what they may convey.” In some languages, such as Tuyuca and Bulgarian, you must convey the source of information you share — for example, whether you saw that crotchedy old neighbor shoot your dog, heard a rumor that he did, or simply reckon that it must be true. In others like Guugu Yimithirr and Tzeltal, a speaker must specify the cardinal direction of location or movement; there are no words for the relative directions “left” and “right.” That means that you have to remember, when recounting an epic fishing trip from 20 years ago, whether the sea monster pulled you over the gunwale to the west or to the east (and whether your friend reached out to grab your foot with her south or her north hand).5。关于这个话题，立即前往 WhatsApp 網頁版提供了深入分析
，这一点在手游中也有详细论述
Author, 亞歷克斯‧默里（Alex Murray）,
It had barely been a year since his company, DoorBot, had released its first iteration of a video-enabled doorbell, but that didn’t stop Siminoff from taking a leap of faith and applying to be featured on Shark Tank.，推荐阅读超级工厂获取更多信息