关于defecation的百科

• defecation造句怎么写

• Theemphasisisonpreventionbyensuringcleanwater,promotinggoodpersonalhygiene,andfoodhandlingpractices,includinghandwashingandtryingtopreventdefecationinopenareas.Itishighlyprobablethatdinosaurshadacloaca-asdomostbirdsandreptiles-whichisasingleopeningfo...
• 2018-09-1410255