COMabbr.计算机输出缩微胶片(=computer-output microfilm)abbr.组件对象模型(=Component Object Model)comites[医] 伴血管, 并行血管

1. Most food should be removed from its commercial packing and placed in sealable bags before packing your backpacks.
   在打包之前，大部分食物应该从原始的商业包装中取出放在密封袋中。