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Nov 16, 2017 . Today, Duolingo officially launched its Chinese course for English speakers, now available on iOS, Android, and web. . To illustrate how tones can make all the difference, take shi: with a high, flat tone, shi means lion; shi with a rising tone is stone; shi with a low tone is history; and shi with a falling.get price>>
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Apr 29, 2016 . Like most high stakes standardized tests, they have been the subject of withering criticism: that they don't measure the kind of real world English spoken in lecture halls or board rooms, that performance is just a proxy for socio economic status, that cheating is widespread. What if you could make a cheaper,.get price>>