rub elbows交际，接触
1.You can use copper elbows and pipe.
可以用铜弯头和铜管。
2.Mark too leans forward on his elbows, smiling as Tanya smiles, nodding as she nods.
马克也将身体往前倾，谭雅微笑他也微笑，谭雅点头他也点头。
3.Colin half sat up, turning toward her, leaning on his elbows.
科林半坐起来，转向她，用胳膊肘支撑身体。
4.Your elbows should be close to your body, bent at a 90- to 120-degree angle.
你的肘部应该靠近自己的身体，弯曲90到120的角度。
5.Mark too leans forward on his elbows, smiling as Tanya smiles, nodding as she nods.
6.He propped his elbows upon a greasy counter.
他把胳膊肘撑在油腻腻的柜台上。
7.Exhale take the palms together and bend the elbows.
呼气，手掌合十，弯曲手肘。