to be near the end of one’s strength or life
自分の力や命の終わりに近い (jibun no chikara ya inochi no owari ni chikai)
"After the long hike, we were all on our last legs."
"長いハイキングの後、私たちはみんな最後の足だった。" (nagai haikingu no ato, watashitachi wa minna saigo no ashi datta)
to play an important part in something
to be as close as family members
to commit an illegal act
To support or defend someone.
to make others happy by being kind or cheerful
to have an advantage or be well prepared