Tetranitrin
四硝赤醇
🗣️ 情景例句
Sorry, but he is out at the moment.
抱歉，他现在出去了？
What do you want to be when you grow up?
当你长大后，你想要成为什么吗？
I'm afraid I must.Look at it!It's terribly dry.
恐怕我得现在浇。你看看，干得厉害。