This is the 9002nd most frequent Japanese word.
注意深く
Carefully; attentively.
Here, '注意深く' is used to depict the meticulous and attentive manner in which checking is performed.
彼は注意深くその書類をチェックしました。
He carefully checked the document.
In this case, '注意深く' emphasizes the importance of being cautious and deliberate in progress.
注意深く進むことが成功の秘訣です。
Proceeding carefully is the key to success.
Here, '注意深く' illustrates the careful and detailed observation needed to perceive minor details.