one of the first

问题描述:

one of the first
比如在这个句子中,
when a new type of aeroplane is being made,normally only one of the first three made will be flown.

one of the first three
前三个中的第一个.
句子的翻译为:
单一种新型的飞机开始制造时,通常制造出来前三架只有一架会被试飞.
希望我的回答可以帮到你^^