白宫称伊朗若不接受现实将遭更沉重打击，伊朗：美国想谈是承认失败

This pattern expresses a conditional relationship. 若 is a formal written way to say “if,” and 将 often introduces the expected result, similar to “will” or “would.” It is common in news and formal writing.

不 is used to negate verbs, meaning “not” or “do not.” In formal statements, it often appears before action verbs to deny an action or refusal to do something.

间 often means “between.” In the structure A间的B, it describes something belonging to, happening between, or relating to two sides. Here it modifies 谈判, meaning “the negotiations between A and B.”

称 is a formal reporting verb often used in news writing. It introduces what someone says or claims, similar to “stated that” or “said that” in English.

是 is used to identify, define, or judge something. In this sentence, it links one action with its interpretation or meaning, showing that one thing “is” another in the speaker’s view.