backbone

支柱；主干网；决心，毅力；脊椎英释中释nthe row of connected bones that go down the middle of your back

1 to the backbone,完完全全；彻头彻尾

2 backbone network,中枢网络，骨干网

3 backbone enterprise,骨干企业

1 Farmers are the backbone of this community..农场主是这个团体的中坚力量。