She is unflaggingly optimistic, she has the most noble and absurd ideal.

她是一个不屈不挠的乐天派，拥有既崇高又荒唐的理想。

For at least 50 years, the computer has been experimentally employed as the unflaggingly patient, attentive teaching assistant.

至少在50年前，电脑就被实验性地用作一个永不停歇、耐心、谨慎的助教。