動詞 crave:

1. have a craving, appetite, or great desire for
   同義詞：hunger, thirst, starve, lust
2. plead or ask for earnestly

1. By this time the inner man began to crave nourishment.
   到這個時候，肚子開始咕咕叫著要吃東西了。
2. He knows that if they trust him, he can give them the happiness which they crave.
   他認識到如果他們信賴他，他能夠把他們所熱切渴望的幸福賜與他們。

crave

v.（動詞）
craved,crav.ing,craves
v.tr.（及物動詞）
To have an intense desire for.See Synonyms at desire
對…熱切希望參見 desire
To need urgently; require.
急需；需要
To beg earnestly for; implore.See Synonyms at beg
懇求；哀求參見 beg
v.intr.（不及物動詞）
To have an eager or intense desire.
有急切或強烈的愿望

來源：
Middle English craven
中古英語 craven
from Old English crafian [to beg]
源自 古英語 crafian [懇求]

【引伸】
crav.er
n.（名詞）
crav.ingly
adv.（副詞）