Antibiotic resistance has now become a costly and dangerous problem.
抗生素抗药性不仅代价高昂，也非常危险。
This is no small problem and a mistake here could be costly.
这不是小事，任何一个错误在这里都要付出高昂的代价。
Repair of this problem can become quite costly and is not recovered by warranty.
这一问题不在保修范围内，且修理价格很昂贵。
Repair of this problem can become quite costly and is not recovered by warranty.
这一问题不在保修范围内，且修理价格很昂贵。
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