to rise to a standing position
aufstehen (aufstehen)
"Everyone stood up when the teacher entered the room."
"Alle standen auf, als der Lehrer den Raum betrat." (Alle **standen auf**, als der Lehrer den Raum betrat.)
to discuss a matter thoroughly with someone
to catch an illness, especially one that is not serious
to feel full of thankfulness and appreciation
to observe a colleague closely to learn
to express one's opinion openly about a topic
to use existing advantages or abilities to achieve more succ...