Stel
abbr. 短时间接触容许浓度（Short term exposure limit）
🗣️ 情景例句
My favorite hobby is coin collecting.
我最大的爱好是收集硬币。
When the heart is afire, some sparks will fly out at the mouth.
心中发火，口吐妄言。
some snakes manufacture a poison different in every respect from that of others,
有些蛇产生的毒液也在各方面与另外一些毒蛇产生的毒液不同，