YSK: 'Forever Chemicals' or chemicals that don't breakdown in your body or the environment, have been used since 1940, may be the biggest environmental disaster our generation (and the world) has to face, and are almost certainly poisoning you right now.
from /r/YouShouldKnow
YSK: "永远的化学品 "或不会在你的身体或环境中分解的化学品，从1940年开始使用，可能是我们这一代人（和世界）必须面对的最大的环境灾难，而且几乎可以肯定现在正在毒害你。