verb · to cut off or stop a flow, such as a conversation, speech, or sequence

他正要解释，却被一阵尖叫声截断了。

verb · to break or cut something physically in two or more pieces

工人们用锯子把木头截断了。

verb · to shorten a value or sequence by cutting off a part, especially in a mathematical context

在进行数值计算时，我们需要截断小数点后的多余位数。