be costly
英 美
Opponents worry that such expansion would be costly for taxpayers, but advocates say it would save money in the long run.
反对者担心这样的扩张会让纳税人付出高昂的代价,但支持者说,从长远来看,这种扩张可以节省资金。
Having curtains made professionally can be costly.
找专业人员制作窗帘会很贵。
Having professionally made curtains can be costly, so why not make your own?
买专业制造的窗帘可能很贵,你为什么不自己做呢?
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