France still relied on couriers to deliver vital information.
当时法国仍然依靠信使来传递重要信息。
The cost of couriers is about 20% of our budget. It's too high.
快递费用占了我们预算的大约百分之二十，这太高了。
Also the couriers from America did not want to travel on planes at that time.
并且那时美国信使们也不愿乘飞机旅行。
We use the post office delivery or other couriers.
我们利用邮局或其他速递公司交付。
We use the post office delivery or other couriers.
我们利用邮局或其他速递公司交付。
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