Tetranitrin
四硝赤醇
🗣️ 情景例句
Do you happen to know...
你是否碰巧知道…
Because such constructive employment practices will greatly promote a better understanding of both American and Chinese cultures.
因为这个具有建设性的雇佣体系将会有力地推进对中美双方文化的更好了解。
Is this a map?
这是一张地图吗？