。
She carried that table all by herself.
Literal
She [topic-は] alone [as-で] that table [object-を] carried.
一人で here highlights unaided physical effort — implied admiration for managing a heavy task without help. その テーブル picks out a specific table both speaker and listener can mentally locate. テーブル is one of countless English loanwords woven into everyday Japanese — Japan adopted it because traditional homes lacked an exact equivalent: the floor tray ちゃぶ台 is low and sat-around, not the hip-height surface a 'table' implies in English.