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| active; effective; effectual; efficacious (про ліки тощо); efficient; forcible; rash; valid; virtual; virtued; virtuous; impactful (Ladyolly) | |||
| operative | |||
| effective (Capable of producing successful results) | |||
| powerful | |||
| efficacious | |||
| effective and efficient | |||
| high-performance; useful | |||
| ефективний: 232 phrases in 33 subjects |