Hexyn
海克斯合成橡胶
🗣️ 情景例句
She feels bad, too, Grandpa.
她也很沮丧， 爷爷。
The tour will take about an hour and a half. We ought to be back here by 3:00.
参观大概要一个半小时，3点钟以前回到这里。
Lined up against the wall, there were long thin wires attached to metal spheres.
靠墙排列着许多细长的电线，而电线又连着金属球。