吃透英语课本，提升在校竞争力
n. 脊柱；中坚；骨干；骨气
复数：backbones
Farmers are the backbone of this community.
农场主是这个团体的中坚力量。
You might be taking drastic measures and you've got to have the backbone to do that.
你可能在采取极端措施，而且你得有骨气做它。
Hard work is the backbone of success.
努力工作是成功的基石。
backbone enterprise
骨干企业
to the backbone
完完全全；彻头彻尾
backbone network
中枢网络，骨干网
n.支柱；主干网；决心，毅力；脊椎
leg
determination
decision
resolution
stay
