失传 (shī chuán): Be lost to posterity / become extinct (Verb) — Meaning & Stroke Order

If this ancient brewing technique is not documented soon, it will likely be lost to posterity.

Experts are making every effort to rescue dialect materials that are on the verge of extinction.

Should we really allow these precious folk arts to become extinct?

As long as the inheritor is present, this unique skill will not be easily lost.