First triad
[化] 铁三素组(指铁钴镍); 铁类金属; 铁基金属; 黑色金属
🧩 词语组成解析
first
[fɝst]
n. 第一，最初;头等;一号，;[乐]高音部;
adv. 最早，最初;首次;宁愿;优先;
adj. 第一流的;最初的，最早的;基本的，概要的;高音的;
num. 第一;
triad
['traiæd]
n. 三个一组;三幅一组;三和音;
🗣️ 情景例句
It's too close to the refreshments.
它离茶点太近了。
Love needs no teaching.
爱情无需教导。
but he was in such a bedraggled condition than an assistant refused to serve him.
但店员见他浑身泥水的样子，竟不肯接待他。