2.无袖连衣裙 jumper skirt
A jumper (in American English), pinafore dress or pinafore (British English) is a sleeveless, collarless dress intended to be worn over a blouse, shirt or sweater. In British English, the term jumper describes what is called a sweater in American English. Also, in more formal British usage, a distinction is made between a pinafore dress and a pinafore. The latter, though a related garment, has an open back and is worn as an apron.
adj. 水平的,横的
n. 水平线,水平面