降至

• reduce ... to ...

例句

1. 更冷。气温将降至摄氏零下五度。
   Colder still. The temperature will drop to five below zero.
2. 大雾中能见距离已降至100米。
   Visibility was down to 100 metres in the fog.
3. 今夜的温度将降至冰点下3度。
   Tonight the temperature will fall to 3 degrees below freezing.