slouch/ slautʃ /

1.vi.
to slouch (over sth) (have poor posture) 无精打采地靠着(某物)

2.vi.
to slouch in/out (walk) 没精打采地走进/走出

3.noun [s] 
低头垂肩的姿态

she was slouched in a chair
她没精打采地坐在椅子上