名詞 longing:

1. prolonged unfulfilled desire or need
   同義詞：yearning, hungriness

動詞 long:

1. desire strongly or persistently
   同義詞：hanker, long, yearn

1. The children are longing for the holidays.
   孩子們盼望放假。
2. Nothing could quench her longing to return home again.
   她重返家園的念頭怎麼也打消不掉。
3. I am really longing for him to say something tender to me.
   我確實(shí)渴望他對我講此溫柔的話。
4. I'm really longing to return home.
   我確實(shí)渴望回家。
5. Having or expressing a wish or longing.
   渴望的，急切希望的有或表達(dá)希望或渴望的
6. The lonely child is longing for the caress of his mother.
   這個(gè)孤獨(dú)的孩子渴望母親的愛撫。

long.ing

n.（名詞）
A strong persistent yearning or desire, especially one that cannot be fulfilled.
渴望：強(qiáng)烈的、揮之不去的渴望或欲望，尤指無法實(shí)現(xiàn)的

【引伸】
long.ingly
adv.（副詞）