slaʊtʃ verb
1 to stand, sit, or walk with a slouch 低头垂肩地站 (坐,走 ),无精打采地站 (坐,走 )
noun
2
be no slouch (at sth)
to be very good at something [非正式] 善于做(某事) informal
霍洛威兹在语言方面很厉害。