Polyflon
聚四氟乙烯树脂(商品名)
🗣️ 情景例句
She went to a school-board meeting.
她去参加联合校董会的会议。
Oh, no! I've missed my plane.
糟糕，我错过了我订的航班。
Here is a copy of itinerary we have worked out for you and your friends.Would you please have a look at it?
这是我们为你和你的朋友拟定的活动日程安排。请过目一下，好吗？