Nitromagnesite
镁硝石
🗣️ 情景例句
To apologize for leaving so early,I brought you a little gift.
为了表示我对提早走掉的歉意，我给你带了一件小礼物。
If you remove stone by stone, even a mountain will be levelled.
一块一块把石移，高山也可变平地。
but on the second, I applied myself assiduously to the task.
不过，新年第二天，我全力以赴地照着去做了。