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单词
crown-glass
释义
DEFINITIVE EXAMPLES 权威例句〔crown lens〕The crown-glass element in an achromatic lens.冕玻璃透镜：在色差透镜中用冕玻璃做成的部件美国传统
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on the town
on the town
on the trace of
on the track
on the track
on the track of
on the track of
on the trail
on the trail
on the trail
on the trail of
on the trail of
on the trail of
on the tramp
on the trot
on the trot
on the trot
on the trot
on the turf
on the turf
on the turn
on the turn
on the turn
on the understanding that
on the understanding that
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