A shortage of helicopters - the workhorses of a naval expeditionary force - makes it hard for the ships to operate with one another.
缺乏海军远征的主力--直升机,使它的船只相互之间很难协同作战。
词典释义:
pl-n. 役马;耕马;工作吃重的人;吃苦耐劳的人;重负荷的机器;(workhorse的复数)
A shortage of helicopters - the workhorses of a naval expeditionary force - makes it hard for the ships to operate with one another.
缺乏海军远征的主力--直升机,使它的船只相互之间很难协同作战。