go to great pains
US /ɡoʊ tə ɡreɪt peɪnz/
UK /ɡoʊ tə ɡreɪt peɪnz/

1.
费尽心思, 不遗余力
to make a great effort to do something, especially to ensure that it is done well or correctly
:
•
She went to great pains to make sure all the guests were comfortable.
她费尽心思确保所有客人都感到舒适。
•
The author goes to great pains to explain complex scientific concepts in simple terms.
作者费尽心思用简单的语言解释复杂的科学概念。