Wǎngshàng dǔchǎng tōngcháng bǎ zhè ge yóuxì jiào hēijiékè.
Online casinos usually call this game blackjack.
Tips
usage
Direct transliteration of 'blackjack' (黑 hēi = black, 杰克 jiékè = Jack). The native calque 二十一点 is more common in everyday speech; 黑杰克 shows up more in online gaming and imported casino contexts.
