[求助]关于FSI的正版书
卓越上有 Colloquial 的原版教材,不过,就连 Teach yourself 和 Take off in 系列都买不到,更不要说买 FSI 或其它系列了。
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Assimil, Colloquial, DLI, FSI, Linguaphone, Michel Thomas, Pimsleur, Rosetta Stone, Teach Yourself, Take off in, .........
FSI = Foreign Service Institute |

