The first ironclads were wooden ships plated with iron.
首批装甲舰是包着钢板的木船。
The first item she bought was an electric iron.
她买的第一样东西是电熨斗。
The men first tied a long rope to the front of the iron box.
那些男士们首先把一条长的绳子绑在铁箱子的前面。
The decoloring reaction is a first order and the iron dissolving is a zero order.
脱色反应为一级反应，铁屑溶解符合零级反应。
The first"no -iron"cotton was the result of this research.
第一块免烫织物便是这项研究的成果。
It cited the first to discover the magnetic properties of iron.
人们首先发现了磁石引铁的性质。
Many years ago men first heated iron ore in a fire.
许多年前，人们初次在火中锻烧矿石。
Many years ago men first heated iron ore in a fire.
许多年前，人们初次在火中锻烧矿石。
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