The children got ashore before the tide came in.

前, 孩子们就上岸了。

My footprints are just marks on the sandbeach, fading away with the ebb and flow.

我的足迹也只是沙滩上的印迹，随朝落而消褪。

The ships departed on the tide.

那几艘船在时启航。

However, on the saltmarsh, peck current velocity values only appeared during the flood phase, except when marsh vegetation wilting.

盐沼（植物期）流速过程具有“单峰型”特点，仅在初出现峰值。

The tide is making now.

现在正在。