。
She rejected my offer.
Literal
She [topic-は] my offer [object-を] rejected.
拒絶 ('rejection, refusal, denial') is a heavier Sino-Japanese alternative to 断る — both can translate as 'refuse,' but 拒絶 carries a sense of categorical, formal rejection, often in serious or final contexts (a marriage proposal, an asylum claim, a treatment recommendation). Where 断る might describe declining an everyday invitation, 拒絶 marks something closer to outright denial. The Sino-Japanese register of 拒絶する fits formal or charged moments.