Question

assiduous 【assiduous】adj.刻苦的He is assiduous at his studies; he words hard and steadily, and pays continual attention to his teacher.他专心于他的功课，刻苦坚定地工作，并时时注意老师所说的话。

Accepted Answer

[ə'sɪdʒuəs] 
assiduousmarked by care and persistent effort
If you call someone assiduous, it's a compliment. It means they're careful, methodical and very persistent. Good detectives are classically assiduous types.
Assiduous comes from two Latin words: assiduus, meaning "busy incessant, continual or constant," and assidere, meaning "to sit down to" something. (Funnily enough, we also get the word sedentary, meaning someone who doesn't move around much, a lazy couch potato, from this same last word.) Although we tend to think of sedentary types as being the very opposite of assiduous ones, many assiduous activities (like writing, thinking, or detective work) are best done sitting in a chair.
All forms of 'assiduous' will appear on average once every 1132 pages.assiduityassiduousassiduouslyassiduousness

Front	assiduous
Pron	[ə'sɪdʒuəs]
Back	【assiduous】 adj.刻苦的 He is assiduous at his studies; he words hard and steadily, and pays continual attention to his teacher. 他专心于他的功课，刻苦坚定地工作，并时时注意老师所说的话。
Vocab	assiduousmarked by care and persistent effort If you call someone assiduous, it's a compliment. It means they're careful, methodical and very persistent. Good detectives are classically assiduous types. Assiduous comes from two Latin words: assiduus, meaning "busy incessant, continual or constant," and assidere, meaning "to sit down to" something. (Funnily enough, we also get the word sedentary, meaning someone who doesn't move around much, a lazy couch potato, from this same last word.) Although we tend to think of sedentary types as being the very opposite of assiduous ones, many assiduous activities (like writing, thinking, or detective work) are best done sitting in a chair. All forms of 'assiduous' will appear on average once every 1132 pages. assiduity assiduous assiduously assiduousness

Assiduous Meaning Continual ə'Sɪdʒuəs Adj.刻苦的 Studies Words Hard