Ribs well sprung from the spine, but flattened in lower end to permit elbow clearance.

肋骨自脊椎处隆起，向下逐渐变平，到肘部为止。

youdao

Ribs well sprung from the spine, but flattened in lower end to permit elbow clearance.

肋骨自脊椎处隆起，向下逐渐变平，到肘部为止。

youdao