41. A back injury effectively ended his career seven years ago.
42. A back opening fastens with buttons and a wide sash ties at the waist.
43. A back-up power system at the coach station did operate but only lasted three hours.
44. A background check confirmed that he had a criminal record.
45. A backhoe dug down to the damaged culvert in the bottom while a crew assembled another culvert up on top.
46. A backlash to atonal techno-pop or angst-ridden thrash-rock?
47. A bad burn could mean no usable clinker and hence no pay.
48. A bad case of sibling rivalry, it seems.
49. A bad experience like that can dent your confidence.
50. A bad head cold can sometimes feel like flu.