動詞 bite:

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

形容詞 biting:

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

1. Revenge is often like biting a dog because the dog bit you.
   復(fù)仇常常有如因為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?
   你的狗咬人嗎?
3. Stop biting your nails!
   別再咬指甲了！
4. Why are you always biting your nails?
   你為什么老是咬指甲?

bit.ing

adj.（形容詞）
Causing a stinging sensation.
使刺痛的
Capable of gripping and affecting or wounding:
能扣人心弦的、令人感動的或傷害感情的：
例句：
a biting aphorism.See Synonyms at incisive
發(fā)人深省的格言參見 incisive

【引伸】
bit.ingly
adv.（副詞）