adverb taking the 'to' particle, adverb
at length; long-windedly; tediously
Describes speaking, writing, or explaining in a way that goes on too long, often with a negative or critical tone. Commonly used with verbs like 話す, 説明する, 書く.
彼は自分の失敗について長々と話した。
He talked at length about his failure.
Please stop giving long-winded explanations in meetings.
adverb taking the 'to' particle, adverb
stretching far; lying at full length
Describes something physically extending a long way, or a person lying down stretched out. Often used with 伸びる, 横たわる, or similar verbs.
砂浜に長々と寝そべって本を読んだ。
I lay stretched out on the sandy beach and read a book.
行列が長々と続いていた。
The line stretched on and on.