fight off

combatir la infección

to prevent or defeat an invasion by pathogenic microorganisms

prevenir o vencer una invasión de microorganismos patógenos

combatir la enfermedad

to resist a physical or mental disease or sickness

resistir una enfermedad o dolencia física o mental

combatir la competencia

to take action to stay ahead of rival companies or individuals

tomar medidas para mantenerse por delante de las empresas o individuos rivales

to successfully resist an attempt to take your position or defeat you

to try hard not to feel tired

to use the body's defenses to destroy harmful bacteria