Ehs
abbr. 环境、健康和安全（Environment Health Safety）；环境卫生局（Environmental Health Services）
🗣️ 情景例句
I think
我想，
Have you heard from Marry?
你收到玛丽的来信吗？
Oh, it's a short ruler. Who has a long one?
噢，这是把短尺。谁有长尺？