Magnesium hydride
[化] 二氢化镁
🧩 词语组成解析
magnesium
[mæg'ni:zjəm]
n. [化]镁（金属元素）;
[医] 氢化物
🗣️ 情景例句
Are the beaches safe for swimming?
在这儿的海滩游泳安全吗？
Take care of the pence and the pounds will take care of themselves.
积少成多。
However, they have decided to use the post office.
然而她们还是决定利用邮局。