just (in time); just right; just enough; to happen to; to chance to; by chance; it just so happens that[cedict]
碰到
pèng dàoㄆㄥˋ ㄉㄠˋ
to come across; to run into; to meet[cedict]
刀刃
dāo rènㄉㄠ ㄖㄣˋ
knife blade; crucial point[cedict]
上
shàngㄕㄤˋ
on; on top; upon; first (of two parts); previous or last (week etc); upper; higher; above; previous; to climb; to go into; above; to go up; to attend (class or university); third tone of putonghua[cedict]