Alkynyl magnesium halide
[化] 卤化炔镁
🧩 词语组成解析
炔基
magnesium
[mæg'ni:zjəm]
n. [化]镁（金属元素）;
n. 卤化物\\na. 卤化物的
🗣️ 情景例句
What's the capital city of France?
法国的首都是哪里？
The first step is the only difficulty.
万事起头难。
This was followed, at the end of the 1970s, by a machine called an Apple.
70年代末，在牛郎星之后又出现了一种被称为“苹果”的机型。