peace-keeping
词形变化：
副词: peacefully | 名词: peace-fulness |
同义词：
calm | still | quiet | serene | pacific | peaceable | untroubled | placid | tranquil | irenic | easeful | equable | orderly | dreamy | neighborly | lovely | collected | patient | friendship | passive | cool | undisturbed | nonviolent | diplomatic | content | noiseless | silent |
反义词：