2 sentences

1. 退潮后，渔民们来到泥滩上捡海螺。

   tuì​cháo hòu, yú​mín men lái​dào ní​tān shàng jiǎn hǎi​luó.

   After the tide went out, fishermen went to the mudflats to pick up sea snails.

   Source: Dong Chinese Dictionary

2. 退潮后，几只海鸟落在岸边的礁石上，悠闲地梳理着羽毛。

   tuì​cháo hòu, jǐ zhī hǎi​niǎo luò zài àn​biān de jiāo​shí shàng, yōu​xián de shū​lǐ zhe yǔ​máo.

   After the tide went out, several seabirds landed on the rocks along the shore, leisurely preening their feathers.

   Source: Dong Chinese Dictionary