pure lime

例句：

1. 1. The buildersused pure lime to make the foundation strong.
   建筑工人使用纯石灰来使地基坚固。
2. 2.The lime was added to the water toneutralize the acidity.
   向水中加入石灰以中和酸性。
3. 3. The limewas used to treat thesoil for better growth.
   石灰被用来处理土壤，以促进更好的生长。