... Từ vựng chủ đề: ALL WORK AND NO PLAY 1 READING 1. relax /rI’lAks/ verb 1. [intransitive] to rest ... [uncount] the process of watching someone or something carefully, in order to find something out: sự theo dõi, sự quan sát She’s been admitted to the hospital for observation. observation of: a ... verb 1 [transitive] FORMAL to notice someone doing something or something happening: quan sát, theo dõi Similar trends may be observed in most modern societies. observe that: James had already...