至于害处，虽然银暴露对脑和神经的损伤比较罕见，但胶银能导致肾损伤、腹痛及头痛。

As for harm, brain and nerve damage from silver exposure is rare, but colloidal silver can cause kidney damage, stomach distress, and headaches.

youdao

当然，银是贵重的，但是使用的是如此少，以至于这种新技术给太阳能电池板的价格仅仅增添了几分钱。

Of course, silver is expensive. But so little is used that the new technique would add only a few cents to the price of a solar panel.

youdao

但是由于银的使用量很少，这种新技术只会使太阳能电池板价格增加仅仅几美分。

But so little is used that the new technique would add only a few cents to the price of a solar panel.

youdao