Glossary entry (derived from question below)
Spanish term or phrase:
ponen a punto
Portuguese translation:
preparam/aperfeiçoam
- The asker opted for community grading. The question was closed on 2020-10-22 01:56:53 based on peer agreement (or, if there were too few peer comments, asker preference.)
Spanish term
traductora nativa de portugués
Native in: Portuguese 
Works in: Portuguese to Spanish, Spanish to Portuguese
ponen a punto
En este divertido certamen de canto presentado por Tituss Burgess, los concursantes ponen a punto sus cuerdas vocales con el objetivo de ganar hasta USD 60.000
Oct 18, 2020 23:48: changed "Kudoz queue" from "In queue" to "Public"
Proposed translations
Brazil
BA in Modern Languages
Native in: Portuguese (Variant: Brazilian)
Works in: English to Portuguese, Spanish to Portuguese, Portuguese
preparam/aperfeiçoam
"Puesta a punto: 1. f. Operación consistente en regular un mecanismo, un dispositivo, etc., a fin de que funcione correctamente."
https://dle.rae.es/puesta#3JtyaGX
"(han) puesto a punto > aperfeiçoaram / desenvolveram"
https://www.proz.com/kudoz/spanish-to-portuguese/education-p...
"puesta a punto > otimização/preparação"
https://www.proz.com/kudoz/spanish-to-portuguese/medical-gen...
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Note added at 39 mins (2020-10-19 00:27:58 GMT)
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Ou, se quiser algo mais relacionado com música e canto: "afinam/aquecem as cordas vocais".
Brazil
Precise, reliable, experienced (10+ yrs)
Native in: Portuguese (Variant: Brazilian) 
Works in: English to Portuguese, Spanish to Portuguese
Põem à prova
Brazil
Victor Lage de Araujo MD IFCAP MSc 
Medicine|EBM|Research|Education
Native in: Portuguese (Variant: Brazilian) , English (Variants: British, US, UK) , Spanish (Variants: Argentine, Standard-Spain)
Works in: English to Portuguese, German to Portuguese, Portuguese to English, and 3 more.
afinam
Brazil
Victor Lage de Araujo MD IFCAP MSc
Medicine|EBM|Research|Education
Native in: Portuguese (Variant: Brazilian) , English (Variants: British, US, UK) , Spanish (Variants: Argentine, Standard-Spain)
Works in: English to Portuguese, German to Portuguese, Portuguese to English, and 3 more.
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