selenium
🇺🇸
/səˈliːniəm/
🇬🇧
/səˈliːniəm/
noun
R
Selenium is a substance that is necessary for making certain things like electronics and special types of glass. If people don't have enough selenium, they might feel very sad or get sick.
To improve his health, John made sure his diet included enough selenium.
为了改善他的健康，约翰确保他的饮食中包含了足够的硒。
translation
硒
词形变化
Plural
seleniums