升温 shēngwēn to become hot
to become hot; temperature rise; (figuratively) to intensify; to hot up; to escalate; to get a boost
How to remember 升温: 升 to advance + 温 warm = to become hot.
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How it is used
- Literally temperature rising, but mostly figurative for something heating up - 房价升温 (fángjià shēngwēn) housing prices heating up; 关系升温 (guānxi shēngwēn) a relationship warming up.
- Journalistic favorite for intensifying trends, tensions, or enthusiasm; opposite is 降温 (jiàngwēn, cool down) - 明天降温 (míngtiān jiàngwēn) it gets colder tomorrow.
- For a literal fever or a thermometer reading you'd more likely say 温度上升 (wēndù shàngshēng).