Pertex
珀泰克斯面料（用于制作衣服和露营、登山装备等）
🗣️ 情景例句
you had some doubts about wanting to go to Michigan.
你对上Michigan大学有些疑虑。
How did you get there?
你怎么去的？
These days we use a thermos , said Li Lei.
“如今用的是热水瓶了，”李磊说。