From a side view, your ear canals should align with the center of your shoulders.

从侧面看，你的耳朵眼应该和肩膀的中线在一条线上。

youdao

From a side view, your ear canals should align with the center of your shoulders.

从侧面看，你的耳朵眼应该和肩膀的中线在一条线上。

youdao