一项新研究发现，土豆是常见蔬菜中最容易让人发胖的蔬菜之一。

A new study has found that they are one of the most fattening vegetables around.

结果表明，甘薯茎尖的营养成分齐全，除总糖含量较低外，其它成分含量均较常见蔬菜要高；

The result showed that stem apex of sweet potato had various nutritional components which were higher in content than those in common vegetables except total sugar with lower level;