增 (zēng) means “(bound form) to increase; to augment; to add to”. It is an HSK 5 Chinese character in the HSK 3.0 vocabulary.
公司今年的收入增了两成。
Gōngsī jīnnián de shōurù zēng le liǎng chéng.
The company's revenue increased by twenty percent this year.
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