Nitroguanidine
n. [化] 硝基胍
🗣️ 情景例句
I was. I came back here last month on vacation.
本来是，不过上个月回来度假。
We should not impose our values and norms upon other people.
我们不应该把自己的价值和规范准则强加于别人。
Perhaps the most extraordinary building of the nineteeth century was the Crystal Palace, which was built in Hyde Park for the Great Exhibition of 1851.
19世纪最不寻常的建筑也许要数水晶宫了，它是为1851年的“世界博览会”而建在海德公园的。