这个国家非常发达。
zhègè guójiā fēicháng fādá 。
This country is very developed.
他正在发达他的事业。
tā zhèngzài fādá tāde shìyè 。
He is developing his career.
随着经济的发达,人民的生活水平提高了。
suízháo jīngjì de fādá , rénmín de shēnghuó shuǐpíng tígāo le 。
With the development of the economy, people's living standards have improved.