to the backbone
徹頭徹尾,道道地地,純粹
Back·bone n.
1. The column of bones in the back which sustains and gives firmness to the frame; the spine; the vertebral or spinal column.
2. Anything like , or serving the purpose of, a backbone.
The lofty mountains on the north side compose the granitic axis, or backbone of the country. --Darwin.
We have now come to the backbone of our subject. --Earle.
3. Firmness; moral principle; steadfastness.
Shelley's thought never had any backbone. --Shairp.
To the backbone, through and through; thoroughly; entirely. “Staunch to the backbone.”
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