... dropping valve 降压阀, 减压阀 dropping vessel 滴皿 dropping vial 滴瓶 ...
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Thousands of soldiers and sailors were firing live artillery and dropping sonar buoys Thursday in waters near where a South Korean naval vessel, the Cheonan, was sunk by an explosion in March.
星期四，数以千计的士兵和水手在韩国天安号军舰3月被炸沉的海域附近发射实弹，设置声纳浮标。
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