hypermobility
noun[U]
uk/ˌhaɪ.pə.məʊˈbɪl.ə.ti/us/ˌhaɪ.pɚ.moʊˈbɪl.ə.t̬i/aconditionin which someone isabletomoveandbendtheirjoints(=placeswherebonesjoinsuch as inyourfingers, atyourknees, etc.)more than isusual:
（关节）可动性增加，过度松弛，过度变形显著This is ageneticconditionaffectingcollagen(abasicbuildingblockof thebody), which thencauseshypermobility of thejoints.这是一种影响胶原蛋白（身体的基本组成部分）的基因状况，会导致关节过度松弛。
For mostchildrenthesemusclecrampsaredueto hypermobility -excessivesupplenessor being "double-jointed".对于大多数儿童来说，这些肌肉痉挛是由于关节过度松弛造成的，即关节过度柔软或 "双关节"情况。
- Hisproblemwas hypermobility in hisligaments,causinghisribstomoveout ofplace.
- People whospenda lot oftimeat adeskor have hypermobility intheirspinearelikelyto have posturalproblems.
- Thesyndromeoccursinpatientswithjointhypermobility.
- Those with hypermobilitysyndromecanperformallsortsofamazingfeats, such asbendingtheirthumbrightback until ittouchestheirforearm, andtheirkneesleftandrightas well asforwards.