刀口dāokǒu 1.刀上用来切削的一边{blade; knife edge; side of a knife used to cut}: ～锋利。{sharp edge of a knife} 2.〈比喻fig.〉最能发挥作用的地方{crucial point; right spot; where sth. can be put to best use}: 钱要花在～上{Use your money where it is most needed.}|把力量用在～上。{Focus your efforts on the crucial point.} 3.动手术或受刀伤时拉开的口子{cut; incision}: ～尚未愈合。{The cut hasn't healed yet.}