介詞 at 可與 度數 / 價格  / 年齡  / 速度  等

與 數字 有關的名詞並用

at the temperature of + 溫度

at the price of + 價格

at the age of + 年齡

at the speed of + 速度

例:

Water boils at the temperature of 100c.

Tom drobe at the speed of 30miles an hour.

Sandy had her first child at the age of 26.

例:

The manufacturer recommends machine-drying at low temperatures; high temperatures may result in excessive shrinkage and shorten the life of a garment.