Canvasing
vt. 用帆布覆盖（canvas的现在分词形式）
🗣️ 情景例句
Hi, there!
你好！
How long will the sale last?
折价销售多久？
The girl asked to see a timetable, feeling sure that her father could not have made such a mistake.
姑娘要求看到时刻表，因为她相信父亲不能把这么大的事弄错。