（缓慢而）谨慎地，仔细地，一丝不苟地

1. (slowly and) carefully, without haste, thoroughly, deliberately, closely, meticulously

adverb taking the 'to' particle adverb (fukushi) onomatopoeic or mimetic word

一度じっくりと眺め、しっかりと理解したいところです。

(p.27)要仔细地审视一番，好好理解其中深意。