Hexametapol
[化] 海姆帕; 六甲基磷(酸三酰胺)
🗣️ 情景例句
It's great. Although the economy is pretty slow as usual, it's picking up.
很好。虽然经济发展照常地缓慢，不过已开始回升。
No,I don't .
不，我没有。
Yes. It sounded like a train that was going under my house.
是的。这响声听起来像是一列火车在从我的房子下面驶过。