adquiristeis
-you acquired
The word adquiristeis is the preterite form of adquirir in the second person plural.
See the full adquirir conjugation

adquirir

¿Desde el momento en que adquiristeis el equipo, cómo ha evolucionado éste para adaptarse a vuestras nuevas necesidades de formación?
How has your simulator evolved to adapt to your new training needs since you purchased it?
A medida que pasó el tiempo adquiristeis maestría sobre vuestras capacidades físicas, pero perdisteis el sentido de vuestro contrato de vida.
As time went on you acquired mastery over your physical abilities, but lost sense of your life contract.
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