Correct

露背

/ lù bēi / 
Strokes

Definition

halterneck/backless (garment)

Example

As a Verb

reveal/show one's back

1
Lùbēishān
露背衫

backless/sunback blouse

2
Lùbēi
露背
liányīqún
连衣裙

backless/sunback dress