back shoulder line

基本解释

They are well laid back, so that from the side the tips of the shoulder blades are in a nearly vertical line above the elbow.
肩膀必需要有良好的向后倾斜，也就是肩胛骨的顶端与肘关节的外端两点间几乎呈现一条垂直线。
Holding the line with his left shoulder again, and bracing on his left hand and arm, he took the tuna off the gaff hook and put the gaff back in place.
他又用左肩挎住了钓索，把左手和胳臂撑在座板上，从鱼钩上取下金枪鱼，再把鱼钩放回原处。
dict.cn
He fought back from behind to cross the finish line shoulder by shoulder with arch rival Terrence Trammell, silver medalist in the Berlin world championships.
他从后追上泰勒梅尔两人肩并肩冲过终点，继柏林世锦赛后获得银牌。
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