There are 2,000 children worldwide who need a bonemarrowtransplant.
全世界有2000名需要骨髓移植的儿童。
《柯林斯英汉双解大词典》
2
You may need a bonemarrowtransplant if your bonemarrow is diseased and can't make healthy blood cells.
严重时患者可能需要骨髓移植，否则身体将无法制造健康的血细胞。
3
Various other therapies (for example, bone-marrowtransplant, antibiotics or isolation) have proved inadequate, but a gene-based treatment helped cure nearly two dozen children.