求翻译：所以我建议，不仅仅要体现你们公司综合实力和合作诚意，更重要的是体现中国公司一旦与您合作，将会有怎样的利益保障，让他们有安全感最重要（可控制力）是什么意思？

So I suggest, not merely to reflect your company's comprehensive strength and sincerity of cooperation and, more importantly, once the company is working with you is the embodiment of China, would benefit guarantee, give them a sense of security the most important (to control)