为什么微量矿物质是如此重要呢？

Why are trace minerals so important?

youdao

微量矿物元素效果也不显著。

Growth promoters(trace mineral elements) has no effect either.

youdao

硒是人体必需的微量矿物质，对健康有着极其重要的作用。

The essential trace mineral, selenium, is of great importance on human health.

youdao

硒是人体必需的微量矿物质，对健康有着极其重要的作用。

The essential trace mineral, selenium, is of great importance on human health.

youdao