Each and everyone of us hits ebb-tides in life, but it is your choice whether you want to stay in that place, or not.
我们每一个人的生活中都有低潮期,那就要看你如何选择了:畏缩不前还是激流勇进。
2
The flood and ebbtides alternates with each other.
涨潮和落潮交替更迭。
《新英汉大辞典》
3
For another thing, the experiments suggest aragonite allows the chitons to see equally well in air or underwater, something that's probably useful as tidesebb around the mollusks.