Negotiation Interpreting: An Unspecified Yield Figure and a Blunt Deadline

I must not choose the more impressive unit. In consecutive mode I have a brief pause, so I would first ask the speaker quietly in Chinese: “是电芯还是模组？” If the speaker answers, I render the answer precisely. If the speaker does not know or waves the question away, I render faithfully with an explicit boundary: “Our yield rate has reached 99.5%. The speaker has not specified whether that figure is per cell or per module; I will confirm that point.” That is not adding information; it is reporting the limits of the source utterance. I would not say “per cell” because it sounds stronger, and I would not silently omit the engineer's qualifier. After the segment, I would ask the speaker to check the slide or written offer. If the German side presses, I would suggest they put the unit question in the written clarification list, since the speaker has already been asked twice for written confirmation of figures.

I would preserve the firmness but use an idiomatic equivalent rather than a literal calque. “Otherwise there is nothing to discuss” is accurate but sounds like a rupture; “otherwise it is a deal-breaker” conveys the same conditional refusal in natural negotiation English and keeps the Chinese side's leverage. Softening to “we would prefer 60 days” would change the proposition: the Chinese speaker has made 60 days a condition, not a preference. That matters because the German side has already stated 45 days as its standard; if I blur the condition, the Germans may believe there is room to negotiate when the speaker has just closed it. My role is to convey intent, not to conduct diplomacy on the speaker's behalf. If the atmosphere becomes tense, the speaker can adjust the message; I should not pre-adjust it. I would, however, keep my delivery calm and not add emphasis of my own.

I would distinguish function from wording. For a delivery date, “差不多” usually means “approximately” or “more or less”; “基本上” usually means “basically” or “in principle”, often implying exceptions. The risk of rendering 差不多 as “about” is that the German side may treat an approximate date as a commitment; the risk of rendering it as “more or less” is that it may sound evasive. The risk with 基本上 is different: “basically” can signal “yes, but not fully”, while “in principle” can sound like a conditional agreement. My approach is to interpret with the safer epistemic level and then, where the number matters, ask the speaker a short clarifying question: “是确定日期还是大概？” If the speaker says approximate, I say “approximately”; if the speaker says firm, I say “we can commit to”. I would not upgrade either phrase to “we guarantee” or “definitely”.