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Open the tool →枘凿冰炭 (ruì zuò bīng tàn) is a Chinese idiom (chengyu) meaning “to describe things or ideas that are sharply opposed”.
枘凿冰炭 is pronounced ruì zuò bīng tàn in Mandarin Chinese.
Literally, 枘凿冰炭 means “Tenon and mortise, ice and charcoal”. It is used to mean “to describe things or ideas that are sharply opposed”.
比喻事物尖锐对立,互不相容。参见“枘凿方圆”。