vi.

1. 叹气，叹息
   We heard her sigh with relief.

   我们听到她宽慰地叹了一口气。

2. 惋惜；思念[（+for）]
   She sighed for home and friends.

   她思念家乡和朋友。

3. 发叹息似的声音；发飒飒声
   Wind sighed in the branches.

   风在树枝间飒飒做响。

vt.

1. 叹息着说出
   The old woman sighed out her grief.

   老妇人叹着气叙说她的悲哀。

2. 想……而叹气
3. 在叹息中消磨（时光）[（+away）]

n.[C]

1. 叹气，叹息
   After reading her daughter's letter Mrs. White breathed a sigh of relief.

   读完女儿的来信，怀特太太宽慰地松了口气。

2. 叹息似的声音；飒飒声

n.

1. a long, deep, audible exhalation expressing sadness, tiredness, relief, etc.
2. a sound resembling this.

v.

1. emit a sigh.
2. (sigh for) literary yearn for.