"weighted bar used for exercise," 1711, originally an apparatus like that used to ring a church bell, but without the bell (hence dumb); used for exercise but sometimes also to practice ringing changes. Figurative sense of "blockhead, stupid person" attested by 1918, American English college slang.
双语例句
1. Stand with feet hip - width apart, a dumbbell in each hand.
双脚分开与臀部齐宽, 左右手各握一哑铃.
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2. The dumbbell was raised 20 times by the sportsman yesterday.
昨天,这个哑铃被运动员举起二十次.
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3. The dumbbell will be raised 20 times by the sportsman tomorrow.
明天,这个哑铃将被运动员举起二十次.
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4. Dumbbell is to make you strong change in the best helper.
哑铃是使你变强壮的最佳帮手.
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5. The dumbbell is raised 20 times by the sportsman everyday.
