They jogged in silence a while, faces lowered, out of step.他们低着头，一言不发地慢跑了一会儿，步伐也不一致。He's out of step with the rest of us.他和我们大家步伐不大谐调.Tom is out of step with the times.汤姆跟不上时代的步伐....
The treatment at the spa vitalized the old man.矿泉治疗使这个老人获得新生.The hotel's new Spa offers every kind of rejuvenating treatment and therapy.这个酒店新的温泉疗养区提供各种养生护理和诊疗服务。Imagine pristine waters, hideaway beaches, luxury spa...
human immunodeficiency virus or HIV人体免疫缺陷病毒，即HIVThese conclusions have emerged from observations of persons exhibiting different states of immunodeficiency.这些结论是从观察人的各种免疫缺陷症状得出的.About 50 % of Acquired Immunodeficiency Sy...