Sàichē bǐsài xiǎnxiànghuánshēng, guānzhòng kàn de jǐnzhāng bù yǐ.
The race was full of close calls, keeping spectators on the edge of their seats.
Tips
usage
Suggests dangers popping up in succession, like one ring of a chain after another (环 = ring). Common in travel writing, action narration, and sports commentary. Modern set phrase — not in the classical Xinhua chengyu derivation field.