a protective covering; the use of protective masks and equipment; protective coatings; kept the drunken sailor in protective custody; animals with protective coloring; protective tariffs.

 
  • 防护层;防护面具和设备的使用;防护层;对醉酒的海员实施保护性监禁;有保护色的动物;保护性关税。
今日热词
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