G-27:go without saying 不用说
A:Wouldn't you say that Lucy is a bright girl?
A:难道露西不是个聪明的姑娘吗?
B:Yeah. She got full marks for mathematics and English in the final exam.
B:她是很聪明。她期末考试时数学和英语都得了满分。
A:Her parents must be very pround of her.
A:她父母一定以她为荣。
B:It goes without saying.
B:那还用说吗。