drum助记

drum

[drʌm]

n.鼓;鼓状物;鼓声;石首鱼;

vt.击鼓;连打;反复讲;鼓吹;

vi.击鼓;连打;拍翅;

过去式： drummed 过去分词： drummed 现在分词：drumming 第三人称单数： drums

例句:

1、

The beats of the drum were steady and slow.

鼓声平稳而缓慢.

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2、

Store in seal drum at dry place, usable life over 1 year.

产品密封包装后贮存于阴凉、干燥处, 贮存期一年.

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3、

The central unit is a rotary drum.

核心设备是一个旋转的滚筒.

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