A motivating three-level course with a clear, coherent structure and built-in flexibility. Lifelines combines thorough language presentation and practice with human-interest topics and texts. It provides core material of 70-100 hours per level.
發表於2024-11-14
Lifelines 2024 pdf epub mobi 電子書 下載
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Lifelines 2024 pdf epub mobi 電子書 下載