We would like to point out that delivery before Christmas is essential and hope you can offer us that guarantee.
我们想指出圣诞节前交货很重要并希望贵方能就此向我们作出保证。
At first I thought I'd done the right thing, but I soon realized that I'd made a mistake.
开始我以为我做对了,但是很快就发现自己犯了个错误。