ADC的定义真的是射手吗

不是，官方描述是这样的：ADC (Attack Damage Carry) is an archaic term used to refer
to a champion that deals strong, continuous damage with their basic
attacks and scales with attack-related stats - i.e. attack damage, critical strike chance and attack speed. The role was retired in official contexts and replaced with Marksman, to distinguish between ranged basic attackers (including those that do not build AD, e.g. Azir) and the ability to carry, with melee ADCs being distributed between the Slayer and Fighter roles.
adc一般指的是能通过普通攻击提供强力，持续伤害和攻击相关状态尺度如暴击率和攻速的英雄，但没有明确说明必须是物理攻击。所以飞机，大嘴这种也都是adc.其实以前蛮子和改版前的剑姬也被算到这个行列了。因为他们出暴击，有攻速，有输出环境——一个能5秒真男人一个能开R自由穿梭敌阵之间。不过改版后剑姬输出环境就没有以前那么恶心了。大多数法师有强力，没持续，没暴击的攻击。辅助就不说了。打野一般带节奏，经济收入有限也无法兼顾那些。上单常态也不是能兼顾那些脆脆的英雄。所以射手最适合adc担当。但adc定义不仅限于射手。
要是出现有攻速、有暴击、最重要的是能站得住的剑圣也可以自称adc.