I'd like to send this express, please.
劳驾，我要寄快递。
You have to pay a high premium for express delivery.
快递须付高额的附加费。
The results are expressed in descending numerical order.
结果按数字降序列出。
Customers with ten items or less can use the express lane.
购买十件商品以内的.顾客可使用快速购物通道。
I would like to express my gratitude to everyone for their hard work.
我要对所有辛勤劳动的人表示感谢。