单词	watchkeeper
释义	watchkeeperwatch‧keep‧er /ˈwɒtʃˌkiːpə $ ˈwɑːtʃˌkiːpər, ˈwɒːtʃ-/ noun [countable] someone whose job is to guard or protect something, especially a ship
随便看	unzip up- up up-and-coming Upanishads upbeat upbraid upbringing UPC upcharge upchuck upcoming up-country upcycle upcycling update Updike, John updo upend upfront upgrade upheaval uphill uphold upholder

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