Question

牧师圣诞节穿的衣服叫什么？

圆领衣服白色的

Answer 1

通常叫vestments（圣衣）或者robes（长袍）吧。这是把它们当一整套衣服来叫。

要分开一件一件的话，从里到外分别是：
The cassock（法衣）: a full length robe (usually black or red) which is worn by choir members and sometimes by clergy.
The surplice（罩衣）: a gathered, half-length, white overgown that is worn over the cassock.
The alb（白麻布圣职衣）: a white, full-length, long-sleeved robe.
The stole（圣带<-像项巾的东西）: a band of colored fabric that ordained ministers wear on top of the cassock, alb, or surplice. Priests and bishops wear the stole around their necks with the loose ends hanging down in front. Deacons wear the stole over one shoulder, with the loose ends fixed at the waist.
The chasuble（十字褡）: a circular, shawl-like garment that a bishop or priest wears over the alb and stole.

然后，好像不同节日不同颜色而已。“基督降临节[蓝色],圣诞节[白色]，显现节[绿色]，大斋期[紫色]，复活节[白色]，圣灵降临节[绿色]。”不同文化对不同教堂的风俗有不少影响。

来源：
http://standrewsaa.org/index.php?page=how-we-worship
更详细的关于神职人员穿着：
http://fatherjoe.wordpress.com/2006/05/06/clerical-clothing-what-do-priests-wear/
关于不同颜色的意义：
http://www.bustedhalo.com/questionbox/why-does-the-priest-wear-a-purple-stole-both-when-performing-an-exorcism-and-hearing-confessions-is-there-a-link-between-confession-and-exorcism