It is accepted / standard practice to pay a deposit with one's order.
在预订时交付定金是一般的[普遍遵守的]惯例.
辞典例句
This paper presents a CAMAC system which is an internationally accepted standard interface.
本文介绍一种国际公认的标准接口(CAMAC).
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Bluetooth is a new widely accepted standard of short distance communication in personal area networks ( PANs ).
蓝牙协议 是一种面向个人领域近距离传输需要的无线通信协议.
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In the West Bank, average household expenditure on water is twice the globally accepted standard.
在西岸地区, 在用水上的人均花费是国际上可接受标准的两倍.
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This was done during the visit and improved to a more accepted standard.
留到参观期间做并改良成被承认的标准!
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