The loin is short, muscular and slightly arched.

短，肌肉发达，且略微圆拱。

youdao

Long, dry, muscular, and slightly arched, springing cleanly from the shoulders.

长，干燥，肌肉发达，略微圆拱，整洁的与肩部接合。

youdao

She has the most exquisitely dry, tapered and slightly arched neck…I just want to look at her here and admire how correctly it flows into a high, correct insertion into the wither.

她有着极优雅紧凑、象尖锥一样微微弓着的脖子…那是我极爱看的部位，它是那样精确地汇入到高处的马隆肩。

youdao

As if one, every feminist of childbearing age in America (we exaggerate, but only slightly) simultaneously arched her back and let out a deafening hiss.

WSJ: Best of the Web Today: Susan Patton Told the Truth