水在船底晃来晃去.Water was slopping about in the bottom of the boat.铆工把薄金属板铆在船底上.The riveter riveted the metal sheets to the ship's bottom.那些鱼在船底扑腾着.The fish were flopping about in the bottom of the boat....

“在船底”的英语可以翻译为：alow ...