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Spaced Repetition System (SRS) flashcards are used not as a substitute for input, but as a powerful accelerator. By helping learners recognize and recall high-frequency vocabulary more quickly, SRS lowers the cognitive load during listening and reading, making input more comprehensible sooner and allowing acquisition to happen faster.
，更多细节参见使用 WeChat 網頁版
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The result could be confirmed later this year, when the European Space Agency’s Hera spacecraft arrives at Didymos and Dimorphos for follow-up observations.
For PVEC_BOOL and statically allocated PVEC_SUBR, RESTSIZE is 0.