嘛。。。你一定没有去看DND5的英文原文。。。
• You can use Dexterity instead of Strength for
the attack and damage rolls of your unarmed
strikes and monk weapons.
• You can roll a d6 in place of the normal
damage of your unarmed strike or monk
weapon. This die changes as you gain monk
levels, as shown in the Martial Arts column of
the Monk table.
• When you use the Attack action with an
unarmed strike or a monk weapon on your
turn, you can make one unarmed strike as a
bonus action.