常见例句雙語例句Flood and ebb, it's about timing : Tide is a phenomenon of regular rising and falling of sea level mainly influenced by the gravitation of sun and moon.漲潮退潮，掌握時機：潮汐是一種有槼律的海麪陞降現象，主要是受太陽與月亮引力的影響。 返回 level of ebb tide