floating ring游动: move about; go from place to ...环: ring; hoop游动环状暗点: roving ring scotomata动环: rotating seal ring; rotor ring; seal head游动: move about; go from place to place; play◇游动哨 a roving sentry; a patrol下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:游动环,即可在微信中查询翻译