To be very close friends who share secrets.
Sehr enge Freunde sein, die Geheimnisse teilen. (zehr enge froinde zain dee gehimnisse tailen)
"Lisa and Nora are as thick as thieves since childhood."
"Lisa und Nora sind seit ihrer Kindheit sehr enge Freunde." (lisa unt nora zint zait ira kindhait zehr enge froinde)
to test the limits or performance of an AI system
to change the rules or conditions to make success harder
to feel affection or fondness for someone
a natural talent for gardening or growing plants
to make a difficult decision or endure something unpleasant
a decision or opinion has not yet been reached