... reversion(back mutation) 释义：回复突变 rigid neck and back 释义：项背强 deep fascia back 释义：胸腰筋膜 ...
双语例句
1
Backandneck should be held in a rigid position, while eyes look downward.
背部和颈部应被关押在僵化的立场，而眼睛向下看。
2
And when it was about six hundred, he felt ache all over his waist andbackand the neck getting rigid, but decided he would finish one thousand, whatever happened.