Vanamid
聚酰胺
🗣️ 情景例句
She's still giving the toughest English history exams
她仍用最艰深的英国史试题考学生
Better wear out than rust out.
与其闲散不如忙碌。
We spent some time looking around under the trees for some wood.
我们花了些时间在树下四周找木柴。