Back-bone
分水岭；脊柱
🧩 词语组成解析
back
[bæk]
n. 背，背部;背面，反面;后面，后部;（椅子等的）靠背;
vt. 使后退;支持;加背书于;下赌注于;
vi. 后退;倒退;
adj. 背部的;后面的;以前的;拖欠的;
adv. 以前;向后地;
bone
[bon]
n. 骨头;尸骨;骨质物;有…样的骨头的;
vt. 挑鱼刺，剔骨头;剔去…的骨;
vi. 苦学;专心致志;
🗣️ 情景例句
We once found a cat.
我们有一次找到一只猫，
Doesn't that garbage smell nasty?
你没有闻到那垃圾有股怪异的气味？
The secret lies in the title of the book which he wrote about his early life, The story of my experiments with truth.
秘密在于他写的那本关于他自己早期生活的《我体验真理的故事》一书。