to be involved in something too difficult to handle
自分では扱えないほど難しいことに関わっている (jibun de wa atsukaenai hodo muzukashii koto ni kakawatte iru)
"He’s in over his head with this complex project."
"彼はこの複雑なプロジェクトに手に負えなくなっている。" (kare wa kono fukuzatsu na purojekuto ni te ni oenaku natte iru)
to discuss ideas informally
to make a problem seem less serious
to make the difference between two things less clear or dist...
to become part of a group or team
to turn something on so it operates
to work extremely hard
