to express doubt or uncertainty about something
expresar duda o incertidumbre sobre algo (expresar duda o incertidumbre sobre algo)
"There’s been a lot of questions over the accuracy of that report."
"Ha habido muchas preguntas sobre la exactitud de ese informe." (Ha habido muchas **preguntas sobre** la exactitud de ese informe.)
to publicly express an opinion about something important
to combine or mix aspects from different cultural background...
to join another person to do something together
to make people notice something good
to express thanks or appreciation for something
to disconnect mentally and drift into thoughts