anxious/ 'æŋkʃəs /

1.adjective [+expression] [ person] 
(worried) 忧虑的

2.adjective [+situation] [ time] 
(worrying) 不安的

to be anxious to do sth
渴望做某事
to be anxious that...
极力希望…
to get {or} grow anxious
感到忧虑
anxious for sth
热切渴望某事
3. [短语] 
to be not accounted for 未解释的