tiô-ki投機

to seize an opportunity

to seize an opportunity; to speculate; to engage in financial speculation; congenial; agreeable

finance

English Wiktionary, “投機” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E6%8A%95%E6%A9%9F · confidence: Medium (Wiktionary, Hokkien)