smelling salts
noun /ˈsmelɪŋ sɔːlts/, /ˈsmelɪŋ sɒlts/
/ˈsmelɪŋ sɔːlts/
[plural]- a chemical with a very strong smell, kept in a small bottle, used especially in the past for putting under the nose of a person who has become unconscious
嗅盐(有刺鼻的气味,旧时用作苏醒剂)