锐减

chǎn chū liàng ruì jiǎn

产出量锐减

output declines sharply

dìng dān ruì jiǎn

订单锐减

a steep drop in orders

jí bìng shǐ guó jiā de rén kǒu ruì jiǎn

疾病使国家的人口锐减。

Disease decimated the population of the country.

wài lái wù zhǒng rù qīn shì shēng wù duō yàng xìng ruì jiǎn de zhǔ yào yuán yīn zhī yī

外来物种入侵是生物多样性锐减的主要原因之一。

One of the major reasons for the sharp decrease of the biodiversity was the intrusive alien species.