Stel
abbr. 短时间接触容许浓度（Short term exposure limit）
🗣️ 情景例句
Notices are displayed on the bus asking people not to smoke.
公共汽车上张贴着请勿吸烟的公告。
Better be poor than wicked.
宁可做穷人，不要做坏人。
We can't process your damage claim.
我们无法办理你的索赔。