biting

动词 bite:

1. to grip, cut off, or tear with or as if with the teeth or jaws
   同义词：bite, seize with teeth
2. cause a sharp or stinging pain or discomfort
   同义词：bite, sting, burn
3. penetrate or cut, as with a knife
   同义词：bite
4. deliver a sting to
   同义词：sting, bite, prick

形容词 biting:

1. capable of wounding
   同义词：barbed, nipping, pungent, mordacious
2. causing a sharply painful or stinging sensation; used especially of cold
   同义词：bitter

1. Revenge is often like biting a dog because the dog bit you.
   复仇常常有如因为被狗咬了一口而反咬它一口。
2. Does your dog bite? ie Is it in the habit of biting people?
   你的狗咬人吗?
3. Stop biting your nails!
   别再咬指甲了！
4. Why are you always biting your nails?
   你为什么老是咬指甲?

bit.ing

adj.（形容词）
Causing a stinging sensation.
使刺痛的
Capable of gripping and affecting or wounding:
能扣人心弦的、令人感动的或伤害感情的：
例句：
a biting aphorism.See Synonyms at incisive
发人深省的格言参见 incisive

【引伸】
bit.ingly
adv.（副词）