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 no secret my wife is expecting a baby.
我老婆快生孩子了，这又不是什么秘密。
When ale (or drink or wine) is in wit is out.
贪杯丧智。
Even if two of these were flooded, she would still be able to float.
即使有两个舱进水，仍可漂浮的水面上。