Usages of observare
Avus meminit se olim multa signa tempestatis in caelo observare solitum esse.
Grandfather remembers that he once used to observe many signs of weather in the sky.
Dum nautae signa tempestatis in caelo observant, mercator e portu discedere non vult.
While the sailors observe signs of the storm in the sky, the merchant does not want to leave the harbor.
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