Usages of la cosa
A veces suceden cosas inesperadas cuando menos las esperas.
Sometimes unexpected things happen when you least expect them.
La cosa importante es mantener la casa limpia.
The important thing is to keep the house clean.
Es común quejarse cuando las cosas se ponen difíciles, pero siempre hay soluciones.
It is common to complain when things get difficult, but there are always solutions.
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