降 + 至/到 + Amount
The verb 降 (jiàng) means "to fall," "to descend," or "to lower," used for decreases in temperature, prices, levels, or rank. It is more formal than 下降 and often appears in written or news contexts. For example, 将利率降至2% means "lower the interest rate to 2%."
今天气温降到了零下五度。
Jīntiān qìwēn jiàng dào le líng xià wǔ dù.
The temperature dropped to minus five degrees today.
超市把水果的价格降了不少。
Chāoshì bǎ shuǐguǒ de jiàgé jiàng le bù shǎo.
The supermarket lowered the prices of fruit quite a bit.
飞机正在缓缓降落。
Fēijī zhèngzài huǎnhuǎn jiàngluò.
The airplane is slowly descending for landing.