河豚毒素 hé tún dú sù 🔊 tetrodotoxin (TTX) + Keep this word Meanings hé tún dú sù tetrodotoxin (TTX) Its characters 河hériver (CL:條|条[tiao2],道[dao4])HSK 3豚túnsuckling pig毒dúpoisonHSK 6素sùraw silkHSK 7–9