be useful for meaning in English
对…有作用例如
Examples
- Dextrose solutions are useful for providing water .
葡萄糖液可用来供给水分。 - Antibiotic ointments are useful for concurrent bacterial infections .
抗菌素软膏对伴发的细菌感染是有用的。 - They do not preempt the land surface that is useful for other purposes .
它们不预先占用对其它目的有用的地面。 - Such a traditional division of the zone of aeration is useful for illustrative purposes .
为了说明的目的，包气带的传统划分是有用的。 - There are many kinds of dogs; some are used to tend sheep; some are useful for hunting .
狗的种类很多，有的用于保护羊群，有的用于打猎。