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.
為了改善他的健康，約翰確保他的飲食中包含了足夠的硒。
translation
硒
詞形變化
Plural
seleniums