劳动的抽象性 the abstract nature of labour
抽象运动的理论 Theoria motus abstracti
未特指的抽动障碍 Tic disorder, unspecified
土壤无脊椎动物的抽样 Sampling of soil invertebrates
并且不幸的是，许多RLS患者同时有控制腿部突然抽动的障碍，这种抽动在整个夜间每隔20至30秒就会发生一次。
And unfortunately, many people who have RLS also have trouble controlling sudden limb movements, which can occur every 20 to 30 seconds all night long — a major sleep disrupter.
乍看上去，长长的耳朵，抽动的鼻子和蹦蹦跳跳的可爱姿势，兔子真的是可爱得不行。 当然，这只是针对一只兔子而言。
With its long ears, twitching nose, and adorable hopping ability, the individual rabbit is fairly cute.
应用推荐