Is the tide coming in or going out?现在是涨潮还是落潮？A line or an artificial indicator marking the high-water or low-water limit of the tides.潮痕标记涨潮和落潮时潮水边缘的线或人为的标记Our children enjoyed watching the ebb and flow of the tide when we were spending the weekend at the seaside.我们在海滨度周末时，孩子们都很喜欢观赏涨潮和退潮的景象。The tide set in.涨潮了。It was high tide.涨潮了。The tide is flowing.涨潮了。The tide usually starts to come in at about six o'clock.通常六点钟就开始涨潮了。The gide is ebbing.落潮了。The tide is ebbing.落潮了。The ship was weighting anchor to get away before the falling tide left her stranded.船正在起锚开动，以免落潮使它搁浅。
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