他们也曾在展会上遇见过数不清的同行，零售商对他们表示兴趣，但没人能够保证承诺的产品及快速的发货。
They've also seen countless entrepreneurs at trade shows who, after seeing interest from retailers, either couldn't deliver on the promised product or couldn't ship the order promptly enough.
这家公司保证供货质优价廉的承诺对它的成功起了决定性的作用。
The company's commitment to providing quality at a reasonable price has been vital to its success.
杨说：“我可以向我的顾客承诺：如果你们在牡丹餐厅吃饭，我保证你们所吃到的一切都是最安全、最好的。”
"I can give my customers a promise: if you eat at Peony Restaurant, I guarantee that everything you get will be the safest and the best," Yang said.
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