您要查找的是不是：
- Salt is a common food preservative. 盐是一种常用的食物防腐剂。
- Salt has a preservative effect on food. 盐对食物有防腐作用。
- He painted the posts with a preservative liquid. 他在柱子上涂上了起保护作用的液体。
- They netted the fruit trees to protect them from birds. 他们用网覆盖住果树以使其免遭鸟害。
- How can we protect our computer files? 我们怎样才能保护我们的计算机数据？
- Salt is a preservative for meat. 盐是肉类的防腐剂。
- A plastic cover protect the computer. 这台计算机由一个塑料防护罩盖着。
- It's our duty to protect the saplings. 保护树苗是我们的责任。
- In case of flood, the dam can protect us. 在发洪水的时候，大堤可以保护我们。
- A law was passed to protect alien property. 通过了一项法律保护外国侨民的财产。
- An umbrella will protect you from the rain. 雨伞可以保护你不致雨淋。
- These policemen wear helmets to protect them. 这些警察戴着头盔保护自己。
- He raised his arm to protect his child from hurt. 他伸出手去，保护他的孩子免受伤害。
- These gallant soldiers will protect our country. 这些勇敢的士兵会保卫我们的国家的。
- The local authorities protect the family from inquisitive tourists. 地方当局保证这个家庭不受爱好寻根究底的旅游者的纠缠。
- Preservative is usually added to tinned meat. 防腐剂通常加在肉类罐头里.
- Food Packing: No Preservative Added. 食品包装：保证不添加防腐剂。
- Salt is savory, purifying, preservative. 盐是有味道的，能除污，能防腐。
- A preservative agent or principle. 防腐剂有助于保存的药剂或成分
- The cavaliers rushed into the palace to protect the king. 武士们冲进宫里保护国王。
