Serrulation
n. 细锯齿状, 细锯齿
🗣️ 情景例句
You really must have your wits about your when dealing with such people.
跟这类人打交道，你必须格外警觉。
After a while,we found a shady place under some poplar trees.
在一会儿以后，我们在一些白杨树下面发现了一块遮阴的地方。
Why are there three prices quoted for this part?
这种零件为什么有三种不同的报价？