Después del accidente, Juan siguió trabajando como si tal cosa, sin mostrar ningún signo de dolor.
After the accident, Juan kept working as if nothing had happened, showing no sign of pain.
Ella entró a la sala como si tal cosa, ignorando los comentarios negativos que había escuchado.
She entered the room as if nothing had happened, ignoring the negative comments she had heard.
Aunque recibió una mala noticia, actuó como si tal cosa para no preocupar a su familia.
Although she received bad news, she acted as if nothing had happened to avoid worrying her family.
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