backstage
backspace
backsliding
backslide
backside
backstroke
backtrack
backup
backward
backward(s)
backwardness
backwards
backwards (also backward)
backwash
backwater
backwoods
backwoodsman
backyard
bacon
bacteria
bacterial
bactericidal
bacteriologist
bacteriology
bacterium
bad
bad debt
bad lands
bad language
bad-mouth
bad-tempered
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backstroke

n [U] swimming stroke done on one's back in the water 仰泳.



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