added values from land的用法和样例：
- The SUM function comes in handy when you want to add values from different ranges or combine number values with ranges of numbers.
- A technique was studied for extracting calcium phytate,a product with high added value from wastewater in the production of starch with corns.
- The US side, however, calculated the added value created in Hong Kong region's entrepot trade as imports from China, and thus greatly over-calculated its import value from China.
- We turned away from land and headed out to sea.