Uramite
[化] 聚脲甲醛
🗣️ 情景例句
Susan called early this morning. Susan
一大早打电话来。
The sacrifice of time is the costliest of all sacrifices.
损失时间是一切损失中代价最大的损失。
I won't be able to see him today.
今天我不可能去看他。