what i do is an exact science and should be treated as such.
你要知道我所做的确切地说是一门科学,而它理应受到科学的对待。
don「t think of watering as an exact science where every drop must be measured.
不要以为浇水是一种精确的科学,以至于每一滴用水都要精密地测量。
unfortunately for the residents of galveston, meteorology was far from an exact science at the end of the 19th century, and they received very little warning about the storm」s strength.
十九世纪末期,气象学远未成为精确的科学,这对加尔维斯顿的居民来说很不幸,他们几乎没有得到有关风暴强度的警告。