HMS Pinafore (or, The Lass that Loved a Sailor) , Act I: This very night (Josephine, Hebe, Ralph, Boatswain, Relatives, Sailors, Dick) (皮纳福号军舰（又名：爱上水手的姑娘），第一幕：就在今晚（约瑟芬、赫柏、拉尔夫、水手长、亲戚们、水手们、迪克）)