Permeometer
织物透气性测试仪
🗣️ 情景例句
so she had to take an earlier flight today.
所以她不得不在今天搭早一班的班机。
No everybody puts the highest value on him.
不，人人对他都有最高的评价。
When you visit London, one of the first things you will see is Big Ben,
当你游览伦敦时，首先看到的东西之一就是“大本”钟，