Someone who is easy to understand or transparent.
alguien fácil de entender o transparente (alguien facil de entender o transparente)
"She’s an open book; you always know what she’s thinking."
"Ella es un open book; siempre sabes lo que está pensando." (ella es un **open book**; siempre sabes lo que esta pensando.)
very wise or knowledgeable
to use one’s power or influence aggressively
crying because of happiness
to fulfill your part of an agreement or duty
to resolve small problems or imperfections
to cause pollution or environmental impact through daily act...