successively; continuously; in a row
Describes doing something repeatedly without a break, or one after another. Often used with numbers or time expressions.
彼は三時間続けて勉強した。
He studied for three hours straight.
続けて二つの会議に出席した。
I attended two meetings in a row.
The adverbial form of the verb 続ける (to continue), derived from the continuative stem 続け plus the particle て.