Peritrophic
围食膜的
🗣️ 情景例句
I'm glad I got to know you.
我很高兴能够认识你。
The post office is two blocks straight ahead, You can't miss it.
那邮局一直向前走过两条街，很好找。
Most business letters around the world are written in English.
世界上大多数商务信函都是用英语写的。