何况 (hékuàng) escalates an argument: if the easy case already fails (or succeeds), the harder case is beyond question — 这道题大人都不会做,何况孩子呢? "even adults can't solve this problem, let alone a child."
It often teams up with a 连…都 clause before it and 呢 after it, and 更何况 adds extra punch. Compared with 别说…就是, 何况 is the more compact, more rhetorical option — it expects no reply.
Examples
这道题大人都不会做,何况孩子呢?
這道題大人都不會做,何況孩子呢?
zhè dào tí dà ren dōu bù huì zuò hé kuàng hái zi ne
Even adults can't do this problem, let alone kids.
Practice this pattern in graded stories like The Sermon on the Mount - Part 2 (Matthew 6), The Sermon on the Mount - Part 3 (Matthew 7) inside the Literate Chinese app.
Every grammar point in this guide is built into the Literate Chinese app, with graded stories that use the pattern naturally and flashcards matched to the words you know — in Mainland or Taiwan Mandarin. Free on iOS and Android.