on the other hand

I work.

私は働きます

My brother rests at home, and I work.

兄は家で休みます、私は働きます

My brother rests at home, while on the other hand I work.

兄は家で休みます、一方で私は働きます

My brother rests at home, while on the other hand I work to meet a deadline.

兄は家で休みます、一方で私は締め切りのために働きます

My brother rests at home, while on the other hand I work tonight to meet a deadline.

兄は家で休みます、一方で私は締め切りのために今夜働きます