sacrificial anode cathodic protection

例句：

1. 1. The sacrificial victim was a lamb.
   牺牲品是一只羔羊。
2. 2. The sacrifice of life isnecessary for the greater good.
   为了更大的利益，牺牲生命是必要的。
3. 3. Thesacrifice of time and effortcan lead to great rewards.
   牺牲时间和努力可以带来巨大的回报。