增速 zēngsù to speed up
to speed up; to accelerate; (economics) growth rate
How to remember 增速: 增 increase + 速 prompt = to speed up.
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How it is used
- To speed up, or (as a noun) the growth rate - 经济增速 (jīngjì zēngsù) the pace of economic growth; 增速放缓 (zēngsù fànghuǎn) growth slows.
- In economic reporting it usually means 'growth rate'. Formal/economic.