Freshness keeping

• 保鲜

Freshness keeping的用法和样例：

例句

1. I keep a wary eye on the freshness date and examine the tamper-proof packaging.
   我会用机警的眼光查看商品的保鲜期以及包装袋上的防伪标记。
2. Vacuumizing was often used in rice packaging as a fresh keeping technique.
   摘要真空包装是大米销售包装常用的一种保鲜技术。