Gabrite
脲甲醛聚合物
🗣️ 情景例句
Fine. We were just wondering about this trunk.
好啦。我们正纳闷这只大衣箱呢。
I invited him last Thursday.
我上个星期四邀请他。
The salvage operation had been a complete failure.
打捞工作彻底失败了。