swan

名词 swan:

1. stately heavy-bodied aquatic bird with very long neck and usually white plumage as adult

动词 swan:

1. to declare or affirm solemnly and formally as true
   同义词：affirm, verify, assert, avow, aver, swear
2. move about aimlessly or without any destination, often in search of food or employment
   同义词：roll, wander, stray, tramp, roam, cast, ramble, rove, range, drift, vagabond
3. sweep majestically

1. Mr Miller is a black swan, an honest lawyer!
   米勒先生是一位诚实的律师，非常难得。
2. A young swan is called a cygnet.
   小天鹅叫做“cygnet”。
3. The swan sings when death comes.
   死期来到，天鹅歌声美妙。
4. A black swan is rare.
   黑天鹅很稀有。

swan 2

v.intr.Chiefly Southern U.S. （不及物动词）【多用于美国南部】
To declare; swear. Used in the phraseI swan as an interjection.
发誓，声明：声明；发誓。作为感叹词用于词组I swan 中

来源：
Probably alteration of dialectal (I) s` warrant [(I) shall warrant]
Probably alteration of dialectal (I) s` warrant [(I) shall warrant]