Inert gases like neon and argon have eight electrons in their outer shell.
像氖和氩这样的惰性气体,在它们的外电子层有8个电子。
《柯林斯英汉双解大词典》
Agronomists studying the herb have discovered that it produces large amounts of histidine, an amino acid that, in test-tube solutions, renders these metals chemically inert.