Tetranitrin
四硝赤醇
🗣️ 情景例句
If you have time around Christmas, please come to visit my family.
如果你圣诞节前后有空，欢迎到我家来玩。
Have a good time.
祝您快乐。
The earth shook for quite a while.
地面震动了好一阵子。