别说 (bié shuō): Not to mention / let alone (Conjunction) — Meaning & Stroke Order

Not to mention understanding quantum mechanics, I've even forgotten most of the basic physics.

Let alone reaching a consensus, we haven't even finalized the basic agenda for the meeting.

Don't say I didn't warn you, it's going to rain tomorrow.

Not to mention whether he is competent, don't you even doubt the feasibility of this project?

Not to mention obtaining additional support, we haven't even fully utilized the existing resources.

Not to mention him, even I find this task difficult.

Let alone completing this monumental work independently, even participating in the collaboration requires extremely high professional competence.