Mdi
[化] 二苯基亚甲基二异氰酸酯
🗣️ 情景例句
Oh, here it is.
哦 在这里 。
I often go to school in the morning.
我常常在早上去学校。
The truth is that when mistakes occur, they are more likely to be ours than theirs.
事实上，差错很可能是我们自己，而不是铁路当局的。