Usages of por
Eu quis deslizar pelo corredor em meias, mas a minha mãe pediu para não o fazer.
I wanted to slide through the hallway in socks, but my mother asked me not to do it.
Quando a borboleta entrou pela janela, a estrela mais brilhante já se via no céu.
When the butterfly came in through the window, the brightest star was already visible in the sky.
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