Marmag
氧化镁
🗣️ 情景例句
She's moving up the ranks one step at a time.
他一步一步的向上爬。
Keep going straight for two blocks, then turn right on Elm street and you'll run right into it.
一直走，过两个街区，然后往右拐是埃尔姆街，再往前走，迎面就是莫特街。
The workmen told him to do as he pleased and the policeman telephoned for help.
工人说，悉听尊便。警察去打电话叫人。