Creasing
n. 压痕；折缝；皱折
✅ 同义词
🗣️ 情景例句
If you don't ... can I ... can I adopt the dog?
要是你们找不到狗的主人，我可否…… 我可否收养这只狗?
Are you sure this is where we are to meet them?
你确定要在这个地方和他们碰头吗？
and a period (which is the time it takes a wave crest to travel one wave length).
和周期（浪峰走过一个波长所需的时间）。