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单词
vacuum tube
释义
vacuum tube
n.
a tube with a near-vacuum for the free passage of electric current
真空管,电子管
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flagpole
flagrancy
flag-rank
flagrant
flagrantly
flagship
flagstaff
flag-station
flagstone
flagstoned
flag-wagging
flag-waver
flag-waving
flail
flair
flak
flake
flake
flake out
flakily
flakiness
flak jacket
flaky
flaky pastry
flambeau
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更新时间:2026/10/1 15:12:27