Meaning of FFI | Babel Free
Definitions
Examples
“The underlying cause of FFI is increasingly well understood, and builds on much of what we have⟳ discussed regarding the normal mechanisms of sleep⟳ generation.”
CEFR level
C2
Mastery
This word is part of the CEFR C2 vocabulary — mastery level.
This word is part of the CEFR C2 vocabulary — mastery level.
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